25451552 has 24 divisors (see below), whose sum is σ = 57266496. Its totient is φ = 10907712.

The previous prime is 25451551. The next prime is 25451557. The reversal of 25451552 is 25515452.

It is not an unprimeable number, because it can be changed into a prime (25451551) 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, 56588 + ... + 57035.

It is an arithmetic number, because the mean of its divisors is an integer number (2386104).

Almost surely, 2^25451552 is an apocalyptic number.

It is an amenable number.

25451552 is an abundant number, since it is smaller than the sum of its proper divisors (31814944).

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

25451552 is a wasteful number, since it uses less digits than its factorization.

25451552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113640 (or 113632 counting only the distinct ones).

The product of its digits is 10000, while the sum is 29.

The square root of 25451552 is about 5044.9531216851. The cubic root of 25451552 is about 294.1517411269.

The spelling of 25451552 in words is "twenty-five million, four hundred fifty-one thousand, five hundred fifty-two".