55669280 has 24 divisors (see below), whose sum is σ = 131519052. Its totient is φ = 22267648.

The previous prime is 55669279. The next prime is 55669303. The reversal of 55669280 is 8296655.

It can be written as a sum of positive squares in 2 ways, for example, as 52940176 + 2729104 = 7276^2 + 1652^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173807 + ... + 174126.

Almost surely, 2^55669280 is an apocalyptic number.

It is an amenable number.

55669280 is an abundant number, since it is smaller than the sum of its proper divisors (75849772).

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

55669280 is a wasteful number, since it uses less digits than its factorization.

55669280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347948 (or 347940 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 55669280 is about 7461.1848924953. The cubic root of 55669280 is about 381.8316007103.

The spelling of 55669280 in words is "fifty-five million, six hundred sixty-nine thousand, two hundred eighty".