56875434 has 64 divisors (see below), whose sum is σ = 142636032. Its totient is φ = 14688000.

The previous prime is 56875381. The next prime is 56875439. The reversal of 56875434 is 43457865.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56875439) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 141634 + ... + 142034.

It is an arithmetic number, because the mean of its divisors is an integer number (2228688).

Almost surely, 2^56875434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56875434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71318016).

56875434 is an abundant number, since it is smaller than the sum of its proper divisors (85760598).

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

56875434 is a wasteful number, since it uses less digits than its factorization.

56875434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731.

The product of its digits is 403200, while the sum is 42.

The square root of 56875434 is about 7541.5803383641. The cubic root of 56875434 is about 384.5695622313.

Subtracting from 56875434 its reverse (43457865), we obtain a square (13417569 = 3663²).

The spelling of 56875434 in words is "fifty-six million, eight hundred seventy-five thousand, four hundred thirty-four".