55510550 has 24 divisors (see below), whose sum is σ = 103608696. Its totient is φ = 22127040.

The previous prime is 55510541. The next prime is 55510561. The reversal of 55510550 is 5501555.

It is a super-2 number, since 2×55510550² = 6162842322605000, which contains 22 as substring.

It is a congruent number.

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, 13877 + ... + 17423.

It is an arithmetic number, because the mean of its divisors is an integer number (4317029).

Almost surely, 2^55510550 is an apocalyptic number.

55510550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55510550 is a deficient number, since it is larger than the sum of its proper divisors (48098146).

55510550 is a wasteful number, since it uses less digits than its factorization.

55510550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3872 (or 3867 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 26.

The square root of 55510550 is about 7450.5402488679. The cubic root of 55510550 is about 381.4683493476.

The spelling of 55510550 in words is "fifty-five million, five hundred ten thousand, five hundred fifty".