25553115 has 48 divisors (see below), whose sum is σ = 52835328. Its totient is φ = 11170368.

The previous prime is 25553107. The next prime is 25553123. The reversal of 25553115 is 51135552.

It is an interprime number because it is at equal distance from previous prime (25553107) and next prime (25553123).

It is not a de Polignac number, because 25553115 - 2³ = 25553107 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5482 + ... + 9008.

It is an arithmetic number, because the mean of its divisors is an integer number (1100736).

Almost surely, 2^25553115 is an apocalyptic number.

25553115 is an abundant number, since it is smaller than the sum of its proper divisors (27282213).

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

25553115 is a wasteful number, since it uses less digits than its factorization.

25553115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3568 (or 3565 counting only the distinct ones).

The product of its digits is 3750, while the sum is 27.

The square root of 25553115 is about 5055.0089020693. The cubic root of 25553115 is about 294.5424872139.

Adding to 25553115 its reverse (51135552), we get a palindrome (76688667).

The spelling of 25553115 in words is "twenty-five million, five hundred fifty-three thousand, one hundred fifteen".