25720485 has 16 divisors (see below), whose sum is σ = 47031936. Its totient is φ = 11757888.

The previous prime is 25720469. The next prime is 25720501. The reversal of 25720485 is 58402752.

It is an interprime number because it is at equal distance from previous prime (25720469) and next prime (25720501).

It is not a de Polignac number, because 25720485 - 2⁴ = 25720469 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122374 + ... + 122583.

It is an arithmetic number, because the mean of its divisors is an integer number (2939496).

Almost surely, 2^25720485 is an apocalyptic number.

It is an amenable number.

25720485 is a deficient number, since it is larger than the sum of its proper divisors (21311451).

25720485 is a wasteful number, since it uses less digits than its factorization.

25720485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244972.

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 25720485 is about 5071.5367493493. The cubic root of 25720485 is about 295.1841615572.

The spelling of 25720485 in words is "twenty-five million, seven hundred twenty thousand, four hundred eighty-five".