25428082452 has 24 divisors (see below), whose sum is σ = 62822321856. Its totient is φ = 7977437568.

The previous prime is 25428082387. The next prime is 25428082483.

It is a happy number.

25428082452 is nontrivially palindromic in base 10.

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, 62323528 + ... + 62323935.

It is an arithmetic number, because the mean of its divisors is an integer number (2617596744).

Almost surely, 2^25428082452 is an apocalyptic number.

It is an amenable number.

25428082452 is an abundant number, since it is smaller than the sum of its proper divisors (37394239404).

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

25428082452 is a wasteful number, since it uses less digits than its factorization.

25428082452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124647487 (or 124647485 counting only the distinct ones).

The product of its (nonzero) digits is 409600, while the sum is 42.

The spelling of 25428082452 in words is "twenty-five billion, four hundred twenty-eight million, eighty-two thousand, four hundred fifty-two".