55522650 has 48 divisors (see below), whose sum is σ = 139276800. Its totient is φ = 14636160.

The previous prime is 55522637. The next prime is 55522661. The reversal of 55522650 is 5622555.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11271 + ... + 15429.

It is an arithmetic number, because the mean of its divisors is an integer number (2901600).

Almost surely, 2^55522650 is an apocalyptic number.

55522650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 55522650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69638400).

55522650 is an abundant number, since it is smaller than the sum of its proper divisors (83754150).

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

55522650 is a wasteful number, since it uses less digits than its factorization.

55522650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4263 (or 4258 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 55522650 is about 7451.3522262741. The cubic root of 55522650 is about 381.4960643897.

The spelling of 55522650 in words is "fifty-five million, five hundred twenty-two thousand, six hundred fifty".