25772515 has 8 divisors (see below), whose sum is σ = 30997440. Its totient is φ = 20571072.

The previous prime is 25772423. The next prime is 25772533. The reversal of 25772515 is 51527752.

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 25772515 - 2¹¹ = 25770467 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3355 + ... + 7924.

It is an arithmetic number, because the mean of its divisors is an integer number (3874680).

Almost surely, 2^25772515 is an apocalyptic number.

25772515 is a deficient number, since it is larger than the sum of its proper divisors (5224925).

25772515 is a wasteful number, since it uses less digits than its factorization.

25772515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11741.

The product of its digits is 24500, while the sum is 34.

The square root of 25772515 is about 5076.6637666877. The cubic root of 25772515 is about 295.3830702916.

The spelling of 25772515 in words is "twenty-five million, seven hundred seventy-two thousand, five hundred fifteen".