2151170525 has 12 divisors (see below), whose sum is σ = 3048516192. Its totient is φ = 1475088240.

The previous prime is 2151170521. The next prime is 2151170573. The reversal of 2151170525 is 5250711512.

It is not a de Polignac number, because 2151170525 - 2² = 2151170521 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151170521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6146027 + ... + 6146376.

It is an arithmetic number, because the mean of its divisors is an integer number (254043016).

Almost surely, 2^2151170525 is an apocalyptic number.

2151170525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2151170525 is a deficient number, since it is larger than the sum of its proper divisors (897345667).

2151170525 is a wasteful number, since it uses less digits than its factorization.

2151170525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12292420 (or 12292415 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 29.

The square root of 2151170525 is about 46380.7128556688. The cubic root of 2151170525 is about 1290.8970634779.

The spelling of 2151170525 in words is "two billion, one hundred fifty-one million, one hundred seventy thousand, five hundred twenty-five".