56153493 has 80 divisors (see below), whose sum is σ = 100362240. Its totient is φ = 30909600.

The previous prime is 56153491. The next prime is 56153519. The reversal of 56153493 is 39435165.

56153493 is a `hidden beast` number, since 5 + 615 + 34 + 9 + 3 = 666.

It is not a de Polignac number, because 56153493 - 2¹ = 56153491 is a prime.

It is a super-2 number, since 2×56153493² = 6306429552202098, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

Its product of digits (48600) is a multiple of the sum of its prime factors (180).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56153491) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 524746 + ... + 524852.

It is an arithmetic number, because the mean of its divisors is an integer number (1254528).

Almost surely, 2^56153493 is an apocalyptic number.

It is an amenable number.

56153493 is a deficient number, since it is larger than the sum of its proper divisors (44208747).

56153493 is a wasteful number, since it uses less digits than its factorization.

56153493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 171 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

The square root of 56153493 is about 7493.5634380447. The cubic root of 56153493 is about 382.9354671340.

The spelling of 56153493 in words is "fifty-six million, one hundred fifty-three thousand, four hundred ninety-three".