56423565 has 48 divisors (see below), whose sum is σ = 110163456. Its totient is φ = 26467200.

The previous prime is 56423551. The next prime is 56423567. The reversal of 56423565 is 56532465.

It is a happy number.

56423565 is a `hidden beast` number, since 5 + 642 + 3 + 5 + 6 + 5 = 666.

It is not a de Polignac number, because 56423565 - 2⁵ = 56423533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56423567) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13507 + ... + 17183.

It is an arithmetic number, because the mean of its divisors is an integer number (2295072).

Almost surely, 2^56423565 is an apocalyptic number.

56423565 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56423565 is a deficient number, since it is larger than the sum of its proper divisors (53739891).

56423565 is a wasteful number, since it uses less digits than its factorization.

56423565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3730 (or 3727 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

The square root of 56423565 is about 7511.5620878749. The cubic root of 56423565 is about 383.5483989556.

Subtracting 56423565 from its reverse (56532465), we obtain a square (108900 = 330²).

The spelling of 56423565 in words is "fifty-six million, four hundred twenty-three thousand, five hundred sixty-five".