55359399 has 8 divisors (see below), whose sum is σ = 73872000. Its totient is φ = 36876536.

The previous prime is 55359379. The next prime is 55359431. The reversal of 55359399 is 99395355.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55359399 - 2⁹ = 55358887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55359319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2649 + ... + 10850.

It is an arithmetic number, because the mean of its divisors is an integer number (9234000).

Almost surely, 2^55359399 is an apocalyptic number.

55359399 is a deficient number, since it is larger than the sum of its proper divisors (18512601).

55359399 is a wasteful number, since it uses less digits than its factorization.

55359399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14869.

The product of its digits is 820125, while the sum is 48.

The square root of 55359399 is about 7440.3897075355. The cubic root of 55359399 is about 381.1217981919.

The spelling of 55359399 in words is "fifty-five million, three hundred fifty-nine thousand, three hundred ninety-nine".