25155230052 has 12 divisors (see below), whose sum is σ = 58695536816. Its totient is φ = 8385076680.

The previous prime is 25155229963. The next prime is 25155230057. The reversal of 25155230052 is 25003255152.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (25155230057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1048134574 + ... + 1048134597.

Almost surely, 2^25155230052 is an apocalyptic number.

It is an amenable number.

25155230052 is an abundant number, since it is smaller than the sum of its proper divisors (33540306764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25155230052 is a wasteful number, since it uses less digits than its factorization.

25155230052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2096269178 (or 2096269176 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The spelling of 25155230052 in words is "twenty-five billion, one hundred fifty-five million, two hundred thirty thousand, fifty-two".