56291385 has 8 divisors (see below), whose sum is σ = 90066240. Its totient is φ = 30022064.

The previous prime is 56291377. The next prime is 56291387. The reversal of 56291385 is 58319265.

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 56291385 - 2³ = 56291377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56291387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1876365 + ... + 1876394.

It is an arithmetic number, because the mean of its divisors is an integer number (11258280).

Almost surely, 2^56291385 is an apocalyptic number.

It is an amenable number.

56291385 is a deficient number, since it is larger than the sum of its proper divisors (33774855).

56291385 is a wasteful number, since it uses less digits than its factorization.

56291385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3752767.

The product of its digits is 64800, while the sum is 39.

The square root of 56291385 is about 7502.7584927145. The cubic root of 56291385 is about 383.2486597269.

The spelling of 56291385 in words is "fifty-six million, two hundred ninety-one thousand, three hundred eighty-five".