25525653 has 32 divisors (see below), whose sum is σ = 38486016. Its totient is φ = 14961408.

The previous prime is 25525649. The next prime is 25525663. The reversal of 25525653 is 35652552.

It is not a de Polignac number, because 25525653 - 2² = 25525649 is a prime.

It is a super-2 number, since 2×25525653² = 1303117922152818, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25525613) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54900 + ... + 55362.

It is an arithmetic number, because the mean of its divisors is an integer number (1202688).

Almost surely, 2^25525653 is an apocalyptic number.

25525653 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

25525653 is a deficient number, since it is larger than the sum of its proper divisors (12960363).

25525653 is a wasteful number, since it uses less digits than its factorization.

25525653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553.

The product of its digits is 45000, while the sum is 33.

The square root of 25525653 is about 5052.2918561777. The cubic root of 25525653 is about 294.4369341966.

The spelling of 25525653 in words is "twenty-five million, five hundred twenty-five thousand, six hundred fifty-three".