25531460 has 24 divisors (see below), whose sum is σ = 53728920. Its totient is φ = 10191104.

The previous prime is 25531453. The next prime is 25531523. The reversal of 25531460 is 6413552.

It can be written as a sum of positive squares in 4 ways, for example, as 770884 + 24760576 = 878^2 + 4976^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11306 + ... + 13374.

It is an arithmetic number, because the mean of its divisors is an integer number (2238705).

Almost surely, 2^25531460 is an apocalyptic number.

25531460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25531460 is an abundant number, since it is smaller than the sum of its proper divisors (28197460).

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

25531460 is a wasteful number, since it uses less digits than its factorization.

25531460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2695 (or 2693 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 25531460 is about 5052.8665131784. The cubic root of 25531460 is about 294.4592603069.

The spelling of 25531460 in words is "twenty-five million, five hundred thirty-one thousand, four hundred sixty".