55645979236 has 27 divisors (see below), whose sum is σ = 98694836121. Its totient is φ = 27452400144.

The previous prime is 55645979219. The next prime is 55645979243. The reversal of 55645979236 is 63297954655.

The square root of 55645979236 is 235894.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 48580568100 + 7065411136 = 220410^2 + 84056^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 37270506 + ... + 37271998.

Almost surely, 2^55645979236 is an apocalyptic number.

55645979236 is the 235894-th square number.

It is an amenable number.

55645979236 is a deficient number, since it is larger than the sum of its proper divisors (43048856885).

55645979236 is an frugal number, since it uses more digits than its factorization.

55645979236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3148 (or 1574 counting only the distinct ones).

The product of its digits is 61236000, while the sum is 61.

The spelling of 55645979236 in words is "fifty-five billion, six hundred forty-five million, nine hundred seventy-nine thousand, two hundred thirty-six".