55055000500 has 48 divisors (see below), whose sum is σ = 120263938704. Its totient is φ = 22017638400.

The previous prime is 55055000491. The next prime is 55055000509. The reversal of 55055000500 is 500055055.

It is an interprime number because it is at equal distance from previous prime (55055000491) and next prime (55055000509).

It can be written as a sum of positive squares in 8 ways, for example, as 4074779556 + 50980220944 = 63834^2 + 225788^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55055000509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3961564 + ... + 3975436.

It is an arithmetic number, because the mean of its divisors is an integer number (2505498723).

Almost surely, 2^55055000500 is an apocalyptic number.

55055000500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55055000500 is an abundant number, since it is smaller than the sum of its proper divisors (65208938204).

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

55055000500 is a wasteful number, since it uses less digits than its factorization.

55055000500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21829 (or 21817 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 25.

Adding to 55055000500 its reverse (500055055), we get a palindrome (55555055555).

It can be divided in two parts, 5505 and 5000500, that added together give a palindrome (5006005).

The spelling of 55055000500 in words is "fifty-five billion, fifty-five million, five hundred", and thus it is an aban number.