553776863 has 4 divisors (see below), whose sum is σ = 555557808. Its totient is φ = 551995920.

The previous prime is 553776851. The next prime is 553776893. The reversal of 553776863 is 368677355.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 368677355 = 5 ⋅73735471.

It is a cyclic number.

It is not a de Polignac number, because 553776863 - 2²⁰ = 552728287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553776803) 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, 890006 + ... + 890627.

It is an arithmetic number, because the mean of its divisors is an integer number (138889452).

Almost surely, 2^553776863 is an apocalyptic number.

553776863 is a deficient number, since it is larger than the sum of its proper divisors (1780945).

553776863 is a wasteful number, since it uses less digits than its factorization.

553776863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1780944.

The product of its digits is 3175200, while the sum is 50.

The square root of 553776863 is about 23532.4640231320. The cubic root of 553776863 is about 821.1924268665.

The spelling of 553776863 in words is "five hundred fifty-three million, seven hundred seventy-six thousand, eight hundred sixty-three".