55213596 has 24 divisors (see below), whose sum is σ = 143146640. Its totient is φ = 18404496.

The previous prime is 55213577. The next prime is 55213597. The reversal of 55213596 is 69531255.

55213596 is a `hidden beast` number, since 5 + 52 + 13 + 596 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 55213596.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55213597) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255511 + ... + 255726.

Almost surely, 2^55213596 is an apocalyptic number.

It is an amenable number.

55213596 is an abundant number, since it is smaller than the sum of its proper divisors (87933044).

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

55213596 is a wasteful number, since it uses less digits than its factorization.

55213596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511250 (or 511242 counting only the distinct ones).

The product of its digits is 40500, while the sum is 36.

The square root of 55213596 is about 7430.5851721113. The cubic root of 55213596 is about 380.7869104174.

The spelling of 55213596 in words is "fifty-five million, two hundred thirteen thousand, five hundred ninety-six".