25745480 has 32 divisors (see below), whose sum is σ = 61336440. Its totient is φ = 9692160.

The previous prime is 25745479. The next prime is 25745509. The reversal of 25745480 is 8454752.

It can be written as a sum of positive squares in 4 ways, for example, as 25745476 + 4 = 5074^2 + 2^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25745480.

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, 18251 + ... + 19610.

Almost surely, 2^25745480 is an apocalyptic number.

25745480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25745480 is an abundant number, since it is smaller than the sum of its proper divisors (35590960).

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

25745480 is a wasteful number, since it uses less digits than its factorization.

25745480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37889 (or 37885 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 35.

The square root of 25745480 is about 5074.0003941663. Note that the first 3 decimals coincide. The cubic root of 25745480 is about 295.2797499492.

The spelling of 25745480 in words is "twenty-five million, seven hundred forty-five thousand, four hundred eighty".