57072415 has 8 divisors (see below), whose sum is σ = 68772528. Its totient is φ = 45467520.

The previous prime is 57072391. The next prime is 57072437. The reversal of 57072415 is 51427075.

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

It is not a de Polignac number, because 57072415 - 2¹⁷ = 56941343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22477 + ... + 24886.

It is an arithmetic number, because the mean of its divisors is an integer number (8596566).

Almost surely, 2^57072415 is an apocalyptic number.

57072415 is a deficient number, since it is larger than the sum of its proper divisors (11700113).

57072415 is a wasteful number, since it uses less digits than its factorization.

57072415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47609.

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 57072415 is about 7554.6287135769. The cubic root of 57072415 is about 385.0130203051.

The spelling of 57072415 in words is "fifty-seven million, seventy-two thousand, four hundred fifteen".