55379388 has 24 divisors (see below), whose sum is σ = 129728592. Its totient is φ = 18386944.

The previous prime is 55379383. The next prime is 55379393. The reversal of 55379388 is 88397355.

It is a happy number.

55379388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55379383) and next prime (55379393).

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55379381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5895 + ... + 12062.

It is an arithmetic number, because the mean of its divisors is an integer number (5405358).

Almost surely, 2^55379388 is an apocalyptic number.

It is an amenable number.

55379388 is an abundant number, since it is smaller than the sum of its proper divisors (74349204).

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

55379388 is a wasteful number, since it uses less digits than its factorization.

55379388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18221 (or 18219 counting only the distinct ones).

The product of its digits is 907200, while the sum is 48.

The square root of 55379388 is about 7441.7328627142. The cubic root of 55379388 is about 381.1676640974.

It can be divided in two parts, 553793 and 88, that multiplied together give a palindrome (48733784).

The spelling of 55379388 in words is "fifty-five million, three hundred seventy-nine thousand, three hundred eighty-eight".