25008870 has 32 divisors (see below), whose sum is σ = 63553248. Its totient is φ = 6276608.

The previous prime is 25008857. The next prime is 25008871. The reversal of 25008870 is 7880052.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25008871) 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, 24009 + ... + 25028.

It is an arithmetic number, because the mean of its divisors is an integer number (1986039).

Almost surely, 2^25008870 is an apocalyptic number.

25008870 is an abundant number, since it is smaller than the sum of its proper divisors (38544378).

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

25008870 is a wasteful number, since it uses less digits than its factorization.

25008870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49064.

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 25008870 is about 5000.8869213371. The cubic root of 25008870 is about 292.4363511154.

It can be divided in two parts, 25008 and 870, that added together give a triangular number (25878 = T₂₂₇).

The spelling of 25008870 in words is "twenty-five million, eight thousand, eight hundred seventy".