55418382 has 12 divisors (see below), whose sum is σ = 120073200. Its totient is φ = 18472788.

The previous prime is 55418381. The next prime is 55418387. The reversal of 55418382 is 28381455.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55418381) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1539382 + ... + 1539417.

It is an arithmetic number, because the mean of its divisors is an integer number (10006100).

Almost surely, 2^55418382 is an apocalyptic number.

55418382 is an abundant number, since it is smaller than the sum of its proper divisors (64654818).

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

55418382 is a wasteful number, since it uses less digits than its factorization.

55418382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3078807 (or 3078804 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 55418382 is about 7444.3523559810. The cubic root of 55418382 is about 381.2571063085.

The spelling of 55418382 in words is "fifty-five million, four hundred eighteen thousand, three hundred eighty-two".