51023525 has 12 divisors (see below), whose sum is σ = 72307872. Its totient is φ = 34987440.

The previous prime is 51023521. The next prime is 51023527. The reversal of 51023525 is 52532015.

It is not a de Polignac number, because 51023525 - 2² = 51023521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51023525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51023521) 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, 145607 + ... + 145956.

It is an arithmetic number, because the mean of its divisors is an integer number (6025656).

Almost surely, 2^51023525 is an apocalyptic number.

It is an amenable number.

51023525 is a deficient number, since it is larger than the sum of its proper divisors (21284347).

51023525 is a wasteful number, since it uses less digits than its factorization.

51023525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291580 (or 291575 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 51023525 is about 7143.0753180965. The cubic root of 51023525 is about 370.8999882990.

The spelling of 51023525 in words is "fifty-one million, twenty-three thousand, five hundred twenty-five".