56157426 has 96 divisors (see below), whose sum is σ = 146240640. Its totient is φ = 15386112.

The previous prime is 56157419. The next prime is 56157449. The reversal of 56157426 is 62475165.

It is a happy number.

56157426 is a `hidden beast` number, since 5 + 61 + 574 + 26 = 666.

Its product of digits (50400) is a multiple of the sum of its prime factors (800).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 75211 + ... + 75953.

It is an arithmetic number, because the mean of its divisors is an integer number (1523340).

Almost surely, 2^56157426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56157426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73120320).

56157426 is an abundant number, since it is smaller than the sum of its proper divisors (90083214).

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

56157426 is a wasteful number, since it uses less digits than its factorization.

56157426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800 (or 797 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 56157426 is about 7493.8258586653. The cubic root of 56157426 is about 382.9444072133.

It can be divided in two parts, 5615 and 7426, that added together give a triangular number (13041 = T₁₆₁).

The spelling of 56157426 in words is "fifty-six million, one hundred fifty-seven thousand, four hundred twenty-six".