56159457 has 12 divisors (see below), whose sum is σ = 77553840. Its totient is φ = 36146992.

The previous prime is 56159431. The next prime is 56159461. The reversal of 56159457 is 75495165.

It is not a de Polignac number, because 56159457 - 2⁷ = 56159329 is a prime.

It is a super-2 number, since 2×56159457² = 6307769221069698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56159417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8607 + ... + 13652.

It is an arithmetic number, because the mean of its divisors is an integer number (6462820).

Almost surely, 2^56159457 is an apocalyptic number.

It is an amenable number.

56159457 is a deficient number, since it is larger than the sum of its proper divisors (21394383).

56159457 is a wasteful number, since it uses less digits than its factorization.

56159457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22320 (or 22291 counting only the distinct ones).

The product of its digits is 189000, while the sum is 42.

The square root of 56159457 is about 7493.9613689957. The cubic root of 56159457 is about 382.9490237040.

It can be divided in two parts, 56159 and 457, that added together give a triangular number (56616 = T₃₃₆).

The spelling of 56159457 in words is "fifty-six million, one hundred fifty-nine thousand, four hundred fifty-seven".