55550113 has 4 divisors (see below), whose sum is σ = 55575808. Its totient is φ = 55524420.

The previous prime is 55550111. The next prime is 55550119. The reversal of 55550113 is 31105555.

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 55550113 - 2¹ = 55550111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55550111) 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, 9273 + ... + 14038.

It is an arithmetic number, because the mean of its divisors is an integer number (13893952).

Almost surely, 2^55550113 is an apocalyptic number.

It is an amenable number.

55550113 is a deficient number, since it is larger than the sum of its proper divisors (25695).

55550113 is a wasteful number, since it uses less digits than its factorization.

55550113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25694.

The product of its (nonzero) digits is 1875, while the sum is 25.

The square root of 55550113 is about 7453.1948183313. The cubic root of 55550113 is about 381.5589534358.

Adding to 55550113 its reverse (31105555), we get a palindrome (86655668).

The spelling of 55550113 in words is "fifty-five million, five hundred fifty thousand, one hundred thirteen".