56161641 has 8 divisors (see below), whose sum is σ = 75009600. Its totient is φ = 37377392.

The previous prime is 56161627. The next prime is 56161657. The reversal of 56161641 is 14616165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56161641 - 2⁶ = 56161577 is a prime.

It is a super-3 number, since 3×56161641³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56161599 and 56161608.

It is not an unprimeable number, because it can be changed into a prime (56161681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13830 + ... + 17423.

It is an arithmetic number, because the mean of its divisors is an integer number (9376200).

Almost surely, 2^56161641 is an apocalyptic number.

It is an amenable number.

56161641 is a deficient number, since it is larger than the sum of its proper divisors (18847959).

56161641 is a wasteful number, since it uses less digits than its factorization.

56161641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31855.

The product of its digits is 4320, while the sum is 30.

The square root of 56161641 is about 7494.1070849034. The cubic root of 56161641 is about 382.9539878417.

It can be divided in two parts, 5616164 and 1, that added together give a palindrome (5616165).

The spelling of 56161641 in words is "fifty-six million, one hundred sixty-one thousand, six hundred forty-one".