56621470 has 32 divisors (see below), whose sum is σ = 105336000. Its totient is φ = 21897216.

The previous prime is 56621447. The next prime is 56621471. The reversal of 56621470 is 7412665.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56621471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73246 + ... + 74014.

It is an arithmetic number, because the mean of its divisors is an integer number (3291750).

Almost surely, 2^56621470 is an apocalyptic number.

56621470 is a deficient number, since it is larger than the sum of its proper divisors (48714530).

56621470 is a wasteful number, since it uses less digits than its factorization.

56621470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 56621470 is about 7524.7239152011. The cubic root of 56621470 is about 383.9963062072.

The spelling of 56621470 in words is "fifty-six million, six hundred twenty-one thousand, four hundred seventy".