680570553 has 16 divisors (see below), whose sum is σ = 978457536. Its totient is φ = 418286400.

The previous prime is 680570551. The next prime is 680570573. The reversal of 680570553 is 355075086.

It is not a de Polignac number, because 680570553 - 2¹ = 680570551 is a prime.

It is a super-2 number, since 2×680570553² = 926352555221451618, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (680570551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21703 + ... + 42803.

It is an arithmetic number, because the mean of its divisors is an integer number (61153596).

Almost surely, 2^680570553 is an apocalyptic number.

It is an amenable number.

680570553 is a deficient number, since it is larger than the sum of its proper divisors (297886983).

680570553 is a wasteful number, since it uses less digits than its factorization.

680570553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21944.

The product of its (nonzero) digits is 126000, while the sum is 39.

The square root of 680570553 is about 26087.7471813877. The cubic root of 680570553 is about 879.6118092422.

The spelling of 680570553 in words is "six hundred eighty million, five hundred seventy thousand, five hundred fifty-three".