25245054252 has 108 divisors (see below), whose sum is σ = 70245037408. Its totient is φ = 7638840000.

The previous prime is 25245054217. The next prime is 25245054347.

25245054252 is a `hidden beast` number, since 25 + 2 + 45 + 0 + 542 + 52 = 666.

25245054252 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3267498 + ... + 3275214.

Almost surely, 2^25245054252 is an apocalyptic number.

25245054252 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25245054252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35122518704).

25245054252 is an abundant number, since it is smaller than the sum of its proper divisors (44999983156).

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

25245054252 is a wasteful number, since it uses less digits than its factorization.

25245054252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8500 (or 8484 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 36.

The spelling of 25245054252 in words is "twenty-five billion, two hundred forty-five million, fifty-four thousand, two hundred fifty-two".