2545531251 has 8 divisors (see below), whose sum is σ = 3572675520. Its totient is φ = 1607703912.

The previous prime is 2545531249. The next prime is 2545531267. The reversal of 2545531251 is 1521355452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2545531251 - 2¹ = 2545531249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2545531211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22329165 + ... + 22329278.

It is an arithmetic number, because the mean of its divisors is an integer number (446584440).

Almost surely, 2^2545531251 is an apocalyptic number.

2545531251 is a deficient number, since it is larger than the sum of its proper divisors (1027144269).

2545531251 is a wasteful number, since it uses less digits than its factorization.

2545531251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44658465.

The product of its digits is 30000, while the sum is 33.

The square root of 2545531251 is about 50453.2580811190. The cubic root of 2545531251 is about 1365.3986770364.

The spelling of 2545531251 in words is "two billion, five hundred forty-five million, five hundred thirty-one thousand, two hundred fifty-one".