553693939 has 4 divisors (see below), whose sum is σ = 556894656. Its totient is φ = 550493224.

The previous prime is 553693919. The next prime is 553693951. The reversal of 553693939 is 939396355.

It is a happy number.

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 553693939 - 2¹¹ = 553691891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (553693909) 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, 1600099 + ... + 1600444.

It is an arithmetic number, because the mean of its divisors is an integer number (139223664).

Almost surely, 2^553693939 is an apocalyptic number.

553693939 is a deficient number, since it is larger than the sum of its proper divisors (3200717).

553693939 is a wasteful number, since it uses less digits than its factorization.

553693939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3200716.

The product of its digits is 2952450, while the sum is 52.

The square root of 553693939 is about 23530.7020507251. The cubic root of 553693939 is about 821.1514356511.

The spelling of 553693939 in words is "five hundred fifty-three million, six hundred ninety-three thousand, nine hundred thirty-nine".