25497552 has 40 divisors (see below), whose sum is σ = 69745536. Its totient is φ = 7998976.

The previous prime is 25497541. The next prime is 25497557. The reversal of 25497552 is 25579452.

It is a self number, because there is not a number n which added to its sum of digits gives 25497552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25497557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14808 + ... + 16439.

Almost surely, 2^25497552 is an apocalyptic number.

It is an amenable number.

25497552 is an abundant number, since it is smaller than the sum of its proper divisors (44247984).

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

25497552 is a wasteful number, since it uses less digits than its factorization.

25497552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31275 (or 31269 counting only the distinct ones).

The product of its digits is 126000, while the sum is 39.

The square root of 25497552 is about 5049.5100752449. The cubic root of 25497552 is about 294.3288467182.

It can be divided in two parts, 2549 and 7552, that added together give a palindrome (10101).

The spelling of 25497552 in words is "twenty-five million, four hundred ninety-seven thousand, five hundred fifty-two".