55038313 has 4 divisors (see below), whose sum is σ = 60041808. Its totient is φ = 50034820.

The previous prime is 55038311. The next prime is 55038337. The reversal of 55038313 is 31383055.

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 not a de Polignac number, because 55038313 - 2¹ = 55038311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55038311) 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, 2501731 + ... + 2501752.

It is an arithmetic number, because the mean of its divisors is an integer number (15010452).

Almost surely, 2^55038313 is an apocalyptic number.

It is an amenable number.

55038313 is a deficient number, since it is larger than the sum of its proper divisors (5003495).

55038313 is a wasteful number, since it uses less digits than its factorization.

55038313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5003494.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 55038313 is about 7418.7810993451. The cubic root of 55038313 is about 380.3835301359.

The spelling of 55038313 in words is "fifty-five million, thirty-eight thousand, three hundred thirteen".