55244520 has 48 divisors (see below), whose sum is σ = 179545860. Its totient is φ = 14731776.

The previous prime is 55244503. The next prime is 55244537. The reversal of 55244520 is 2544255.

It is an interprime number because it is at equal distance from previous prime (55244503) and next prime (55244537).

It can be written as a sum of positive squares in 2 ways, for example, as 51581124 + 3663396 = 7182^2 + 1914^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76369 + ... + 77088.

Almost surely, 2^55244520 is an apocalyptic number.

It is an amenable number.

55244520 is an abundant number, since it is smaller than the sum of its proper divisors (124301340).

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

55244520 is a wasteful number, since it uses less digits than its factorization.

55244520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153474 (or 153467 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 55244520 is about 7432.6657398271. The cubic root of 55244520 is about 380.8579874561.

Adding to 55244520 its reverse (2544255), we get a palindrome (57788775).

The spelling of 55244520 in words is "fifty-five million, two hundred forty-four thousand, five hundred twenty".