55525633550 has 24 divisors (see below), whose sum is σ = 103411356696. Its totient is φ = 22181505440.

The previous prime is 55525633549. The next prime is 55525633561. The reversal of 55525633550 is 5533652555.

It is a happy number.

It is a super-2 number, since 2×55525633550² (a number of 22 digits) 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, 679664 + ... + 756963.

It is an arithmetic number, because the mean of its divisors is an integer number (4308806529).

Almost surely, 2^55525633550 is an apocalyptic number.

55525633550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55525633550 is a deficient number, since it is larger than the sum of its proper divisors (47885723146).

55525633550 is a wasteful number, since it uses less digits than its factorization.

55525633550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1437412 (or 1437407 counting only the distinct ones).

The product of its (nonzero) digits is 1687500, while the sum is 44.

The spelling of 55525633550 in words is "fifty-five billion, five hundred twenty-five million, six hundred thirty-three thousand, five hundred fifty".