25711494 has 8 divisors (see below), whose sum is σ = 51423000. Its totient is φ = 8570496.

The previous prime is 25711471. The next prime is 25711507. The reversal of 25711494 is 49411752.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

25711494 is an admirable number.

It is a super-2 number, since 2×25711494² = 1322161847424072, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2142619 + ... + 2142630.

It is an arithmetic number, because the mean of its divisors is an integer number (6427875).

Almost surely, 2^25711494 is an apocalyptic number.

25711494 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

25711494 is a wasteful number, since it uses less digits than its factorization.

25711494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4285254.

The product of its digits is 10080, while the sum is 33.

The square root of 25711494 is about 5070.6502541587. The cubic root of 25711494 is about 295.1497621268.

The spelling of 25711494 in words is "twenty-five million, seven hundred eleven thousand, four hundred ninety-four".