55660370 has 16 divisors (see below), whose sum is σ = 102633048. Its totient is φ = 21720960.

The previous prime is 55660369. The next prime is 55660373. The reversal of 55660370 is 7306655.

55660370 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 15578809 + 40081561 = 3947^2 + 6331^2 .

It is not an unprimeable number, because it can be changed into a prime (55660373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67469 + ... + 68288.

Almost surely, 2^55660370 is an apocalyptic number.

55660370 is a deficient number, since it is larger than the sum of its proper divisors (46972678).

55660370 is a wasteful number, since it uses less digits than its factorization.

55660370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135805.

The product of its (nonzero) digits is 18900, while the sum is 32.

The square root of 55660370 is about 7460.5877784528. The cubic root of 55660370 is about 381.8112286063.

The spelling of 55660370 in words is "fifty-five million, six hundred sixty thousand, three hundred seventy".