56445169 has 9 divisors (see below), whose sum is σ = 62134009. Its totient is φ = 51238660.

The previous prime is 56445127. The next prime is 56445187. The reversal of 56445169 is 96154465.

It is a happy number.

The square root of 56445169 is 7513.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 56445169 - 2¹⁵ = 56412401 is a prime.

It is a super-2 number, since 2×56445169² = 6372114206877122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56445469) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 82302 + ... + 82984.

Almost surely, 2^56445169 is an apocalyptic number.

56445169 is the 7513-rd square number.

56445169 is the 3757-th centered octagonal number.

It is an amenable number.

56445169 is a deficient number, since it is larger than the sum of its proper divisors (5688840).

56445169 is an frugal number, since it uses more digits than its factorization.

56445169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388 (or 694 counting only the distinct ones).

The product of its digits is 129600, while the sum is 40.

The cubic root of 56445169 is about 383.5973449487.

Multiplying 56445169 by its product of digits (129600), we get a square (7315293902400 = 2704680²).

The spelling of 56445169 in words is "fifty-six million, four hundred forty-five thousand, one hundred sixty-nine".