55950661 has 12 divisors (see below), whose sum is σ = 60873120. Its totient is φ = 51402000.

The previous prime is 55950637. The next prime is 55950673. The reversal of 55950661 is 16605955.

It is a de Polignac number, because none of the positive numbers 2^k-55950661 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55950661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55950361) 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, 41760 + ... + 43078.

It is an arithmetic number, because the mean of its divisors is an integer number (5072760).

Almost surely, 2^55950661 is an apocalyptic number.

It is an amenable number.

55950661 is a deficient number, since it is larger than the sum of its proper divisors (4922459).

55950661 is a wasteful number, since it uses less digits than its factorization.

55950661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1596 (or 1583 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 37.

The square root of 55950661 is about 7480.0174465037. The cubic root of 55950661 is about 382.4738438833.

The spelling of 55950661 in words is "fifty-five million, nine hundred fifty thousand, six hundred sixty-one".