56440546 has 4 divisors (see below), whose sum is σ = 84660822. Its totient is φ = 28220272.

The previous prime is 56440537. The next prime is 56440547. The reversal of 56440546 is 64504465.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 48094225 + 8346321 = 6935^2 + 2889^2 .

It is not an unprimeable number, because it can be changed into a prime (56440547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14110135 + ... + 14110138.

Almost surely, 2^56440546 is an apocalyptic number.

56440546 is a deficient number, since it is larger than the sum of its proper divisors (28220276).

56440546 is a wasteful number, since it uses less digits than its factorization.

56440546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28220275.

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 56440546 is about 7512.6923269890. The cubic root of 56440546 is about 383.5868721366.

The spelling of 56440546 in words is "fifty-six million, four hundred forty thousand, five hundred forty-six".