55950920 has 16 divisors (see below), whose sum is σ = 125889660. Its totient is φ = 22380352.

The previous prime is 55950913. The next prime is 55950929. The reversal of 55950920 is 2905955.

It can be written as a sum of positive squares in 2 ways, for example, as 55741156 + 209764 = 7466^2 + 458^2 .

It is not an unprimeable number, because it can be changed into a prime (55950929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 699347 + ... + 699426.

Almost surely, 2^55950920 is an apocalyptic number.

It is an amenable number.

55950920 is an abundant number, since it is smaller than the sum of its proper divisors (69938740).

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

55950920 is a wasteful number, since it uses less digits than its factorization.

55950920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398784 (or 1398780 counting only the distinct ones).

The product of its (nonzero) digits is 20250, while the sum is 35.

The square root of 55950920 is about 7480.0347592775. The cubic root of 55950920 is about 382.4744340496.

The spelling of 55950920 in words is "fifty-five million, nine hundred fifty thousand, nine hundred twenty".