55923988 has 12 divisors (see below), whose sum is σ = 97929972. Its totient is φ = 27944000.

The previous prime is 55923979. The next prime is 55923997. The reversal of 55923988 is 88932955.

It is an interprime number because it is at equal distance from previous prime (55923979) and next prime (55923997).

It can be written as a sum of positive squares in 2 ways, for example, as 9847044 + 46076944 = 3138^2 + 6788^2 .

It is a congruent number.

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, 4488 + ... + 11488.

It is an arithmetic number, because the mean of its divisors is an integer number (8160831).

Almost surely, 2^55923988 is an apocalyptic number.

It is an amenable number.

55923988 is a deficient number, since it is larger than the sum of its proper divisors (42005984).

55923988 is a wasteful number, since it uses less digits than its factorization.

55923988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9002 (or 9000 counting only the distinct ones).

The product of its digits is 777600, while the sum is 49.

The square root of 55923988 is about 7478.2342835726. The cubic root of 55923988 is about 382.4130561213.

The spelling of 55923988 in words is "fifty-five million, nine hundred twenty-three thousand, nine hundred eighty-eight".