55366632 has 64 divisors (see below), whose sum is σ = 155001600. Its totient is φ = 18311040.

The previous prime is 55366613. The next prime is 55366643. The reversal of 55366632 is 23666355.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28657 + ... + 30527.

It is an arithmetic number, because the mean of its divisors is an integer number (2421900).

Almost surely, 2^55366632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55366632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77500800).

55366632 is an abundant number, since it is smaller than the sum of its proper divisors (99634968).

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

55366632 is a wasteful number, since it uses less digits than its factorization.

55366632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2023 (or 2013 counting only the distinct ones).

The product of its digits is 97200, while the sum is 36.

The square root of 55366632 is about 7440.8757549095. The cubic root of 55366632 is about 381.1383959993.

The spelling of 55366632 in words is "fifty-five million, three hundred sixty-six thousand, six hundred thirty-two".