55912285 has 24 divisors (see below), whose sum is σ = 79432920. Its totient is φ = 37530240.

The previous prime is 55912273. The next prime is 55912301. The reversal of 55912285 is 58221955.

It can be written as a sum of positive squares in 4 ways, for example, as 290521 + 55621764 = 539^2 + 7458^2 .

It is not a de Polignac number, because 55912285 - 2¹¹ = 55910237 is a prime.

It is a super-2 number, since 2×55912285² = 6252367227842450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4311 + ... + 11419.

It is an arithmetic number, because the mean of its divisors is an integer number (3309705).

Almost surely, 2^55912285 is an apocalyptic number.

55912285 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55912285 is a deficient number, since it is larger than the sum of its proper divisors (23520635).

55912285 is a wasteful number, since it uses less digits than its factorization.

55912285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7149 (or 7138 counting only the distinct ones).

The product of its digits is 36000, while the sum is 37.

The square root of 55912285 is about 7477.4517718271. The cubic root of 55912285 is about 382.3863788857.

The spelling of 55912285 in words is "fifty-five million, nine hundred twelve thousand, two hundred eighty-five".