55244940 has 48 divisors (see below), whose sum is σ = 156817248. Its totient is φ = 14529024.

The previous prime is 55244939. The next prime is 55244941. The reversal of 55244940 is 4944255.

55244940 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 (55244939) and next prime (55244941).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (55244941) 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 15 ways as a sum of consecutive naturals, for example, 1927 + ... + 10686.

It is an arithmetic number, because the mean of its divisors is an integer number (3267026).

Almost surely, 2^55244940 is an apocalyptic number.

It is an amenable number.

55244940 is an abundant number, since it is smaller than the sum of its proper divisors (101572308).

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

55244940 is a wasteful number, since it uses less digits than its factorization.

55244940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12698 (or 12696 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 55244940 is about 7432.6939934320. The cubic root of 55244940 is about 380.8589526194.

The spelling of 55244940 in words is "fifty-five million, two hundred forty-four thousand, nine hundred forty".