55212692 has 6 divisors (see below), whose sum is σ = 96622218. Its totient is φ = 27606344.

The previous prime is 55212659. The next prime is 55212709. The reversal of 55212692 is 29621255.

55212692 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 only one way, i.e., 36168196 + 19044496 = 6014^2 + 4364^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 6901583 + ... + 6901590.

It is an arithmetic number, because the mean of its divisors is an integer number (16103703).

Almost surely, 2^55212692 is an apocalyptic number.

It is an amenable number.

55212692 is a deficient number, since it is larger than the sum of its proper divisors (41409526).

55212692 is a wasteful number, since it uses less digits than its factorization.

55212692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13803177 (or 13803175 counting only the distinct ones).

The product of its digits is 10800, while the sum is 32.

The square root of 55212692 is about 7430.5243421982. The cubic root of 55212692 is about 380.7848322260.

The spelling of 55212692 in words is "fifty-five million, two hundred twelve thousand, six hundred ninety-two".