25772915 has 8 divisors (see below), whose sum is σ = 35345760. Its totient is φ = 17672832.

The previous prime is 25772891. The next prime is 25772921. The reversal of 25772915 is 51927752.

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 25772915 - 2¹² = 25768819 is a prime.

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, 368150 + ... + 368219.

It is an arithmetic number, because the mean of its divisors is an integer number (4418220).

Almost surely, 2^25772915 is an apocalyptic number.

25772915 is a deficient number, since it is larger than the sum of its proper divisors (9572845).

25772915 is an equidigital number, since it uses as much as digits as its factorization.

25772915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736381.

The product of its digits is 44100, while the sum is 38.

The square root of 25772915 is about 5076.7031624865. The cubic root of 25772915 is about 295.3845984391.

The spelling of 25772915 in words is "twenty-five million, seven hundred seventy-two thousand, nine hundred fifteen".