553978897 has 8 divisors (see below), whose sum is σ = 596712960. Its totient is φ = 512798880.

The previous prime is 553978861. The next prime is 553978937. The reversal of 553978897 is 798879355.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-553978897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (553975897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387772 + ... + 389197.

It is an arithmetic number, because the mean of its divisors is an integer number (74589120).

Almost surely, 2^553978897 is an apocalyptic number.

It is an amenable number.

553978897 is a deficient number, since it is larger than the sum of its proper divisors (42734063).

553978897 is a wasteful number, since it uses less digits than its factorization.

553978897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777023.

The product of its digits is 19051200, while the sum is 61.

The square root of 553978897 is about 23536.7562973321. The cubic root of 553978897 is about 821.2922797314.

The spelling of 553978897 in words is "five hundred fifty-three million, nine hundred seventy-eight thousand, eight hundred ninety-seven".