56507070 has 32 divisors (see below), whose sum is σ = 135815040. Its totient is φ = 15046560.

The previous prime is 56507057. The next prime is 56507071. The reversal of 56507070 is 7070565.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56507071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38001 + ... + 39459.

It is an arithmetic number, because the mean of its divisors is an integer number (4244220).

Almost surely, 2^56507070 is an apocalyptic number.

56507070 is an abundant number, since it is smaller than the sum of its proper divisors (79307970).

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

56507070 is a wasteful number, since it uses less digits than its factorization.

56507070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2760.

The product of its (nonzero) digits is 7350, while the sum is 30.

The square root of 56507070 is about 7517.1184638796. The cubic root of 56507070 is about 383.7375186482.

It can be divided in two parts, 5650 and 7070, that added together give a triangular number (12720 = T₁₅₉).

The spelling of 56507070 in words is "fifty-six million, five hundred seven thousand, seventy".