25718470 has 16 divisors (see below), whose sum is σ = 46397088. Its totient is φ = 10264320.

The previous prime is 25718453. The next prime is 25718479. The reversal of 25718470 is 7481752.

It is a happy number.

It is a super-2 number, since 2×25718470² = 1322879398281800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25718479) 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, 2230 + ... + 7510.

It is an arithmetic number, because the mean of its divisors is an integer number (2899818).

Almost surely, 2^25718470 is an apocalyptic number.

25718470 is a deficient number, since it is larger than the sum of its proper divisors (20678618).

25718470 is a wasteful number, since it uses less digits than its factorization.

25718470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5775.

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 25718470 is about 5071.3380877240. The cubic root of 25718470 is about 295.1764528947.

The spelling of 25718470 in words is "twenty-five million, seven hundred eighteen thousand, four hundred seventy".