56871594 has 48 divisors (see below), whose sum is σ = 138483072. Its totient is φ = 16736544.

The previous prime is 56871589. The next prime is 56871601. The reversal of 56871594 is 49517865.

56871594 is a `hidden beast` number, since 56 + 8 + 7 + 1 + 594 = 666.

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, 99 + ... + 10665.

It is an arithmetic number, because the mean of its divisors is an integer number (2885064).

Almost surely, 2^56871594 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56871594, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69241536).

56871594 is an abundant number, since it is smaller than the sum of its proper divisors (81611478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56871594 is a wasteful number, since it uses less digits than its factorization.

56871594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10611 (or 10608 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 56871594 is about 7541.3257455172. The cubic root of 56871594 is about 384.5609071744.

The spelling of 56871594 in words is "fifty-six million, eight hundred seventy-one thousand, five hundred ninety-four".