25720475 has 12 divisors (see below), whose sum is σ = 34793160. Its totient is φ = 18705600.

The previous prime is 25720469. The next prime is 25720501. The reversal of 25720475 is 57402752.

It is not a de Polignac number, because 25720475 - 2⁴ = 25720459 is a prime.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 46490 + ... + 47039.

It is an arithmetic number, because the mean of its divisors is an integer number (2899430).

Almost surely, 2^25720475 is an apocalyptic number.

25720475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25720475 is a deficient number, since it is larger than the sum of its proper divisors (9072685).

25720475 is a wasteful number, since it uses less digits than its factorization.

25720475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93550 (or 93545 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 25720475 is about 5071.5357634547. The cubic root of 25720475 is about 295.1841233018.

The spelling of 25720475 in words is "twenty-five million, seven hundred twenty thousand, four hundred seventy-five".