55964550 has 48 divisors (see below), whose sum is σ = 139254480. Its totient is φ = 14874240.

The previous prime is 55964533. The next prime is 55964551. The reversal of 55964550 is 5546955.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55964499 and 55964508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55964551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75984 + ... + 76716.

It is an arithmetic number, because the mean of its divisors is an integer number (2901135).

Almost surely, 2^55964550 is an apocalyptic number.

55964550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55964550 is an abundant number, since it is smaller than the sum of its proper divisors (83289930).

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

55964550 is a wasteful number, since it uses less digits than its factorization.

55964550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257 (or 1252 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 39.

The square root of 55964550 is about 7480.9457958202. The cubic root of 55964550 is about 382.5054892629.

The spelling of 55964550 in words is "fifty-five million, nine hundred sixty-four thousand, five hundred fifty".