25525534 has 16 divisors (see below), whose sum is σ = 41531616. Its totient is φ = 11718400.

The previous prime is 25525529. The next prime is 25525541. The reversal of 25525534 is 43552552.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25525496 and 25525505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7762 + ... + 10549.

It is an arithmetic number, because the mean of its divisors is an integer number (2595726).

Almost surely, 2^25525534 is an apocalyptic number.

25525534 is a deficient number, since it is larger than the sum of its proper divisors (16006082).

25525534 is a wasteful number, since it uses less digits than its factorization.

25525534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18371.

The product of its digits is 30000, while the sum is 31.

The square root of 25525534 is about 5052.2800793305. The cubic root of 25525534 is about 294.4364766432.

The spelling of 25525534 in words is "twenty-five million, five hundred twenty-five thousand, five hundred thirty-four".