55313393 has 8 divisors (see below), whose sum is σ = 60456960. Its totient is φ = 50379840.

The previous prime is 55313381. The next prime is 55313399. The reversal of 55313393 is 39331355.

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

It is not a de Polignac number, because 55313393 - 2¹² = 55309297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55313399) 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, 51953 + ... + 53006.

It is an arithmetic number, because the mean of its divisors is an integer number (7557120).

Almost surely, 2^55313393 is an apocalyptic number.

It is an amenable number.

55313393 is a deficient number, since it is larger than the sum of its proper divisors (5143567).

55313393 is a wasteful number, since it uses less digits than its factorization.

55313393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105007.

The product of its digits is 18225, while the sum is 32.

The square root of 55313393 is about 7437.2974258127. The cubic root of 55313393 is about 381.0161928256.

The spelling of 55313393 in words is "fifty-five million, three hundred thirteen thousand, three hundred ninety-three".