25423533052 has 24 divisors (see below), whose sum is σ = 45591003360. Its totient is φ = 12397731840.

The previous prime is 25423533029. The next prime is 25423533071. The reversal of 25423533052 is 25033532452.

It is a happy number.

It is a super-2 number, since 2×25423533052² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25423532999 and 25423533017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 522673 + ... + 569239.

It is an arithmetic number, because the mean of its divisors is an integer number (1899625140).

Almost surely, 2^25423533052 is an apocalyptic number.

It is an amenable number.

25423533052 is a deficient number, since it is larger than the sum of its proper divisors (20167470308).

25423533052 is a wasteful number, since it uses less digits than its factorization.

25423533052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49941 (or 49939 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 34.

The spelling of 25423533052 in words is "twenty-five billion, four hundred twenty-three million, five hundred thirty-three thousand, fifty-two".