2015252461 has 4 divisors (see below), whose sum is σ = 2121318400. Its totient is φ = 1909186524.

The previous prime is 2015252453. The next prime is 2015252467. The reversal of 2015252461 is 1642525102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1642525102 = 2 ⋅821262551.

It is a cyclic number.

It is not a de Polignac number, because 2015252461 - 2³ = 2015252453 is a prime.

It is a super-2 number, since 2×2015252461² = 8122484963133113042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2015252467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53032941 + ... + 53032978.

It is an arithmetic number, because the mean of its divisors is an integer number (530329600).

Almost surely, 2^2015252461 is an apocalyptic number.

It is an amenable number.

2015252461 is a deficient number, since it is larger than the sum of its proper divisors (106065939).

2015252461 is a wasteful number, since it uses less digits than its factorization.

2015252461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106065938.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 2015252461 is about 44891.5633610593. The cubic root of 2015252461 is about 1263.1157585237.

Adding to 2015252461 its reverse (1642525102), we get a palindrome (3657777563).

The spelling of 2015252461 in words is "two billion, fifteen million, two hundred fifty-two thousand, four hundred sixty-one".