25720495 has 8 divisors (see below), whose sum is σ = 31138416. Its totient is φ = 20393856.

The previous prime is 25720469. The next prime is 25720501. The reversal of 25720495 is 59402752.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25720495 - 2⁹ = 25719983 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25720495.

It is a congruent number.

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, 22197 + ... + 23326.

It is an arithmetic number, because the mean of its divisors is an integer number (3892302).

Almost surely, 2^25720495 is an apocalyptic number.

25720495 is a deficient number, since it is larger than the sum of its proper divisors (5417921).

25720495 is a wasteful number, since it uses less digits than its factorization.

25720495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45641.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 25720495 is about 5071.5377352436. The cubic root of 25720495 is about 295.1841998126.

The spelling of 25720495 in words is "twenty-five million, seven hundred twenty thousand, four hundred ninety-five".