25128086 has 16 divisors (see below), whose sum is σ = 38298624. Its totient is φ = 12363624.

The previous prime is 25128067. The next prime is 25128101. The reversal of 25128086 is 68082152.

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, 45665 + ... + 46211.

It is an arithmetic number, because the mean of its divisors is an integer number (2393664).

Almost surely, 2^25128086 is an apocalyptic number.

25128086 is a deficient number, since it is larger than the sum of its proper divisors (13170538).

25128086 is a wasteful number, since it uses less digits than its factorization.

25128086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 25128086 is about 5012.7922358701. The cubic root of 25128086 is about 292.9002910618.

The spelling of 25128086 in words is "twenty-five million, one hundred twenty-eight thousand, eighty-six".