55742170 has 32 divisors (see below), whose sum is σ = 109874880. Its totient is φ = 20192640.

The previous prime is 55742161. The next prime is 55742173. The reversal of 55742170 is 7124755.

It is not an unprimeable number, because it can be changed into a prime (55742173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33621 + ... + 35239.

It is an arithmetic number, because the mean of its divisors is an integer number (3433590).

Almost surely, 2^55742170 is an apocalyptic number.

55742170 is a deficient number, since it is larger than the sum of its proper divisors (54132710).

55742170 is a wasteful number, since it uses less digits than its factorization.

55742170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1950.

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 55742170 is about 7466.0679075401. The cubic root of 55742170 is about 381.9981771246.

It can be divided in two parts, 5574 and 2170, that added together give a square (7744 = 88²).

The spelling of 55742170 in words is "fifty-five million, seven hundred forty-two thousand, one hundred seventy".