56645418 has 16 divisors (see below), whose sum is σ = 114982560. Its totient is φ = 18599856.

The previous prime is 56645417. The next prime is 56645423. The reversal of 56645418 is 81454665.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (56645417) 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, 70053 + ... + 70856.

It is an arithmetic number, because the mean of its divisors is an integer number (7186410).

Almost surely, 2^56645418 is an apocalyptic number.

56645418 is an abundant number, since it is smaller than the sum of its proper divisors (58337142).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56645418 is a wasteful number, since it uses less digits than its factorization.

56645418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140981.

The product of its digits is 115200, while the sum is 39.

The square root of 56645418 is about 7526.3150345969. The cubic root of 56645418 is about 384.0504355412.

The spelling of 56645418 in words is "fifty-six million, six hundred forty-five thousand, four hundred eighteen".