56415345 has 24 divisors (see below), whose sum is σ = 103300416. Its totient is φ = 25754688.

The previous prime is 56415329. The next prime is 56415361. The reversal of 56415345 is 54351465.

It is an interprime number because it is at equal distance from previous prime (56415329) and next prime (56415361).

It is not a de Polignac number, because 56415345 - 2⁴ = 56415329 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76599 + ... + 77331.

It is an arithmetic number, because the mean of its divisors is an integer number (4304184).

Almost surely, 2^56415345 is an apocalyptic number.

It is an amenable number.

56415345 is a deficient number, since it is larger than the sum of its proper divisors (46885071).

56415345 is an frugal number, since it uses more digits than its factorization.

56415345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481 (or 748 counting only the distinct ones).

The product of its digits is 36000, while the sum is 33.

The square root of 56415345 is about 7511.0149114484. The cubic root of 56415345 is about 383.5297724535.

The spelling of 56415345 in words is "fifty-six million, four hundred fifteen thousand, three hundred forty-five".