55802398 has 16 divisors (see below), whose sum is σ = 89179920. Its totient is φ = 26096256.

The previous prime is 55802389. The next prime is 55802447. The reversal of 55802398 is 89320855.

It is a super-2 number, since 2×55802398² = 6227815245100808, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55802398.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 508 + ... + 10576.

It is an arithmetic number, because the mean of its divisors is an integer number (5573745).

Almost surely, 2^55802398 is an apocalyptic number.

55802398 is a deficient number, since it is larger than the sum of its proper divisors (33377522).

55802398 is a wasteful number, since it uses less digits than its factorization.

55802398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10251.

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 55802398 is about 7470.1002670647. The cubic root of 55802398 is about 382.1357073824.

The spelling of 55802398 in words is "fifty-five million, eight hundred two thousand, three hundred ninety-eight".