55308788 has 6 divisors (see below), whose sum is σ = 96790386. Its totient is φ = 27654392.

The previous prime is 55308779. The next prime is 55308809. The reversal of 55308788 is 88780355.

It can be written as a sum of positive squares in only one way, i.e., 39212644 + 16096144 = 6262^2 + 4012^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6913595 + ... + 6913602.

It is an arithmetic number, because the mean of its divisors is an integer number (16131731).

Almost surely, 2^55308788 is an apocalyptic number.

It is an amenable number.

55308788 is a deficient number, since it is larger than the sum of its proper divisors (41481598).

55308788 is a wasteful number, since it uses less digits than its factorization.

55308788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13827201 (or 13827199 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 44.

The square root of 55308788 is about 7436.9878311047. The cubic root of 55308788 is about 381.0056189654.

The spelling of 55308788 in words is "fifty-five million, three hundred eight thousand, seven hundred eighty-eight".