554665123 has 4 divisors (see below), whose sum is σ = 557480880. Its totient is φ = 551849368.

The previous prime is 554665117. The next prime is 554665141. The reversal of 554665123 is 321566455.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 554665123 - 2¹³ = 554656931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (554665523) 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, 1407583 + ... + 1407976.

It is an arithmetic number, because the mean of its divisors is an integer number (139370220).

Almost surely, 2^554665123 is an apocalyptic number.

554665123 is a deficient number, since it is larger than the sum of its proper divisors (2815757).

554665123 is a wasteful number, since it uses less digits than its factorization.

554665123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2815756.

The product of its digits is 108000, while the sum is 37.

The square root of 554665123 is about 23551.3295378414. The cubic root of 554665123 is about 821.6312574840.

The spelling of 554665123 in words is "five hundred fifty-four million, six hundred sixty-five thousand, one hundred twenty-three".