25713690 has 64 divisors (see below), whose sum is σ = 66023424. Its totient is φ = 6386688.

The previous prime is 25713689. The next prime is 25713697. The reversal of 25713690 is 9631752.

It is a super-2 number, since 2×25713690² = 1322387706832200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25713697) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64572 + ... + 64968.

It is an arithmetic number, because the mean of its divisors is an integer number (1031616).

Almost surely, 2^25713690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25713690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33011712).

25713690 is an abundant number, since it is smaller than the sum of its proper divisors (40309734).

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

25713690 is a wasteful number, since it uses less digits than its factorization.

25713690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 25713690 is about 5070.8667898102. The cubic root of 25713690 is about 295.1581647297.

The spelling of 25713690 in words is "twenty-five million, seven hundred thirteen thousand, six hundred ninety".