25712380 has 12 divisors (see below), whose sum is σ = 53996040. Its totient is φ = 10284944.

The previous prime is 25712369. The next prime is 25712383. The reversal of 25712380 is 8321752.

It is a super-2 number, since 2×25712380² = 1322252970528800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25712383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 642790 + ... + 642829.

It is an arithmetic number, because the mean of its divisors is an integer number (4499670).

Almost surely, 2^25712380 is an apocalyptic number.

25712380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25712380 is an abundant number, since it is smaller than the sum of its proper divisors (28283660).

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

25712380 is a wasteful number, since it uses less digits than its factorization.

25712380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285628 (or 1285626 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 25712380 is about 5070.7376189269. The cubic root of 25712380 is about 295.1531523056.

The spelling of 25712380 in words is "twenty-five million, seven hundred twelve thousand, three hundred eighty".