55612207 has 12 divisors (see below), whose sum is σ = 64982736. Its totient is φ = 47453280.

The previous prime is 55612189. The next prime is 55612213. The reversal of 55612207 is 70221655.

55612207 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55612207 - 2¹⁹ = 55087919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55612217) 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 11 ways as a sum of consecutive naturals, for example, 8982 + ... + 13852.

It is an arithmetic number, because the mean of its divisors is an integer number (5415228).

Almost surely, 2^55612207 is an apocalyptic number.

55612207 is a deficient number, since it is larger than the sum of its proper divisors (9370529).

55612207 is a wasteful number, since it uses less digits than its factorization.

55612207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5118 (or 5111 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 55612207 is about 7457.3592511022. The cubic root of 55612207 is about 381.7010695541.

The spelling of 55612207 in words is "fifty-five million, six hundred twelve thousand, two hundred seven".