25870970 has 16 divisors (see below), whose sum is σ = 49019040. Its totient is φ = 9803664.

The previous prime is 25870961. The next prime is 25870973. The reversal of 25870970 is 7907852.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (25870973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67892 + ... + 68271.

It is an arithmetic number, because the mean of its divisors is an integer number (3063690).

Almost surely, 2^25870970 is an apocalyptic number.

25870970 is a deficient number, since it is larger than the sum of its proper divisors (23148070).

25870970 is a wasteful number, since it uses less digits than its factorization.

25870970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136189.

The product of its (nonzero) digits is 35280, while the sum is 38.

The square root of 25870970 is about 5086.3513445298. The cubic root of 25870970 is about 295.7587287023.

The spelling of 25870970 in words is "twenty-five million, eight hundred seventy thousand, nine hundred seventy".