2155002365 has 32 divisors (see below), whose sum is σ = 2863745280. Its totient is φ = 1548473344.

The previous prime is 2155002341. The next prime is 2155002371. The reversal of 2155002365 is 5632005512.

It is a happy number.

It is not a de Polignac number, because 2155002365 - 2¹⁰ = 2155001341 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1087946 + ... + 1089924.

It is an arithmetic number, because the mean of its divisors is an integer number (89492040).

Almost surely, 2^2155002365 is an apocalyptic number.

It is an amenable number.

2155002365 is a deficient number, since it is larger than the sum of its proper divisors (708742915).

2155002365 is a wasteful number, since it uses less digits than its factorization.

2155002365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2581.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 2155002365 is about 46422.0030265821. The cubic root of 2155002365 is about 1291.6630924540.

Adding to 2155002365 its reverse (5632005512), we get a palindrome (7787007877).

The spelling of 2155002365 in words is "two billion, one hundred fifty-five million, two thousand, three hundred sixty-five".