25552998 has 12 divisors (see below), whose sum is σ = 55364868. Its totient is φ = 8517660.

The previous prime is 25552997. The next prime is 25552999. The reversal of 25552998 is 89925552.

25552998 is a `hidden beast` number, since 2 + 5 + 552 + 9 + 98 = 666.

It is an interprime number because it is at equal distance from previous prime (25552997) and next prime (25552999).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25552997) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 709788 + ... + 709823.

It is an arithmetic number, because the mean of its divisors is an integer number (4613739).

Almost surely, 2^25552998 is an apocalyptic number.

25552998 is an abundant number, since it is smaller than the sum of its proper divisors (29811870).

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

25552998 is a wasteful number, since it uses less digits than its factorization.

25552998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419619 (or 1419616 counting only the distinct ones).

The product of its digits is 324000, while the sum is 45.

The square root of 25552998 is about 5054.9973293761. The cubic root of 25552998 is about 294.5420376729.

The spelling of 25552998 in words is "twenty-five million, five hundred fifty-two thousand, nine hundred ninety-eight".