55500252550 has 24 divisors (see below), whose sum is σ = 104018500872. Its totient is φ = 22030632000.

The previous prime is 55500252541. The next prime is 55500252553. The reversal of 55500252550 is 5525200555.

It is a super-2 number, since 2×55500252550² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55500252553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4230111 + ... + 4243210.

It is an arithmetic number, because the mean of its divisors is an integer number (4334104203).

Almost surely, 2^55500252550 is an apocalyptic number.

55500252550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55500252550 is a deficient number, since it is larger than the sum of its proper divisors (48518248322).

55500252550 is a wasteful number, since it uses less digits than its factorization.

55500252550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8473464 (or 8473459 counting only the distinct ones).

The product of its (nonzero) digits is 62500, while the sum is 34.

The spelling of 55500252550 in words is "fifty-five billion, five hundred million, two hundred fifty-two thousand, five hundred fifty".