25058661 has 16 divisors (see below), whose sum is σ = 35610624. Its totient is φ = 15637424.

The previous prime is 25058653. The next prime is 25058711. The reversal of 25058661 is 16685052.

It is not a de Polignac number, because 25058661 - 2³ = 25058653 is a prime.

It is a super-2 number, since 2×25058661² = 1255872982225842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25058641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 621 + ... + 7106.

It is an arithmetic number, because the mean of its divisors is an integer number (2225664).

Almost surely, 2^25058661 is an apocalyptic number.

It is an amenable number.

25058661 is a deficient number, since it is larger than the sum of its proper divisors (10551963).

25058661 is a wasteful number, since it uses less digits than its factorization.

25058661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7800.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 25058661 is about 5005.8626629184. The cubic root of 25058661 is about 292.6302962490.

The spelling of 25058661 in words is "twenty-five million, fifty-eight thousand, six hundred sixty-one".