25667970 has 32 divisors (see below), whose sum is σ = 62097408. Its totient is φ = 6789888.

The previous prime is 25667933. The next prime is 25667989. The reversal of 25667970 is 7976652.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 442 + ... + 7178.

It is an arithmetic number, because the mean of its divisors is an integer number (1940544).

Almost surely, 2^25667970 is an apocalyptic number.

25667970 is an abundant number, since it is smaller than the sum of its proper divisors (36429438).

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

25667970 is a wasteful number, since it uses less digits than its factorization.

25667970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6874.

The product of its (nonzero) digits is 158760, while the sum is 42.

The square root of 25667970 is about 5066.3566791137. The cubic root of 25667970 is about 294.9831264887.

The spelling of 25667970 in words is "twenty-five million, six hundred sixty-seven thousand, nine hundred seventy".