55701570 has 16 divisors (see below), whose sum is σ = 133683840. Its totient is φ = 14853744.

The previous prime is 55701551. The next prime is 55701577. The reversal of 55701570 is 7510755.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 1856719 = 55701570 / (5 + 5 + 7 + 0 + 1 + 5 + 7 + 0).

It is not an unprimeable number, because it can be changed into a prime (55701577) 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 7 ways as a sum of consecutive naturals, for example, 928330 + ... + 928389.

It is an arithmetic number, because the mean of its divisors is an integer number (8355240).

Almost surely, 2^55701570 is an apocalyptic number.

55701570 is an abundant number, since it is smaller than the sum of its proper divisors (77982270).

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

55701570 is a wasteful number, since it uses less digits than its factorization.

55701570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1856729.

The product of its (nonzero) digits is 6125, while the sum is 30.

The square root of 55701570 is about 7463.3484442306. The cubic root of 55701570 is about 381.9054113730.

It can be divided in two parts, 5570 and 1570, that added together give a triangular number (7140 = T₁₁₉).

The spelling of 55701570 in words is "fifty-five million, seven hundred one thousand, five hundred seventy".