55003393 has 4 divisors (see below), whose sum is σ = 56777728. Its totient is φ = 53229060.

The previous prime is 55003379. The next prime is 55003409. The reversal of 55003393 is 39330055.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55003393 - 2²⁵ = 21448961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55003093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 887121 + ... + 887182.

It is an arithmetic number, because the mean of its divisors is an integer number (14194432).

Almost surely, 2^55003393 is an apocalyptic number.

It is an amenable number.

55003393 is a deficient number, since it is larger than the sum of its proper divisors (1774335).

55003393 is a wasteful number, since it uses less digits than its factorization.

55003393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1774334.

The product of its (nonzero) digits is 6075, while the sum is 28.

The square root of 55003393 is about 7416.4272395811. The cubic root of 55003393 is about 380.3030661685.

The spelling of 55003393 in words is "fifty-five million, three thousand, three hundred ninety-three".