25525070512 has 80 divisors (see below), whose sum is σ = 53441392032. Its totient is φ = 11765411840.

The previous prime is 25525070503. The next prime is 25525070569. The reversal of 25525070512 is 21507052552.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11920962 + ... + 11923102.

Almost surely, 2^25525070512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25525070512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26720696016).

25525070512 is an abundant number, since it is smaller than the sum of its proper divisors (27916321520).

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

25525070512 is a wasteful number, since it uses less digits than its factorization.

25525070512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3046 (or 3040 counting only the distinct ones).

The product of its (nonzero) digits is 35000, while the sum is 34.

The spelling of 25525070512 in words is "twenty-five billion, five hundred twenty-five million, seventy thousand, five hundred twelve".