55668536 has 32 divisors (see below), whose sum is σ = 130135680. Its totient is φ = 21688800.

The previous prime is 55668517. The next prime is 55668551. The reversal of 55668536 is 63586655.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a plaindrome in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44570 + ... + 45801.

It is an arithmetic number, because the mean of its divisors is an integer number (4066740).

Almost surely, 2^55668536 is an apocalyptic number.

55668536 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

55668536 is an abundant number, since it is smaller than the sum of its proper divisors (74467144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55668536 is a wasteful number, since it uses less digits than its factorization.

55668536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90395 (or 90391 counting only the distinct ones).

The product of its digits is 648000, while the sum is 44.

The square root of 55668536 is about 7461.1350342961. The cubic root of 55668536 is about 381.8298996885.

The spelling of 55668536 in words is "fifty-five million, six hundred sixty-eight thousand, five hundred thirty-six".