56432649 has 24 divisors (see below), whose sum is σ = 93122112. Its totient is φ = 29764800.

The previous prime is 56432647. The next prime is 56432653. The reversal of 56432649 is 94623465.

It is not a de Polignac number, because 56432649 - 2¹ = 56432647 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56432647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4402 + ... + 11499.

It is an arithmetic number, because the mean of its divisors is an integer number (3880088).

Almost surely, 2^56432649 is an apocalyptic number.

It is an amenable number.

56432649 is a deficient number, since it is larger than the sum of its proper divisors (36689463).

56432649 is a wasteful number, since it uses less digits than its factorization.

56432649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15937 (or 15924 counting only the distinct ones).

The product of its digits is 155520, while the sum is 39.

The square root of 56432649 is about 7512.1667313765. The cubic root of 56432649 is about 383.5689811756.

The spelling of 56432649 in words is "fifty-six million, four hundred thirty-two thousand, six hundred forty-nine".