680476725 has 18 divisors (see below), whose sum is σ = 1218809826. Its totient is φ = 362920800.

The previous prime is 680476721. The next prime is 680476729. The reversal of 680476725 is 527674086.

It is an interprime number because it is at equal distance from previous prime (680476721) and next prime (680476729).

It can be written as a sum of positive squares in 3 ways, for example, as 155975121 + 524501604 = 12489^2 + 22902^2 .

It is not a de Polignac number, because 680476725 - 2² = 680476721 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680476721) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1511946 + ... + 1512395.

It is an arithmetic number, because the mean of its divisors is an integer number (67711657).

Almost surely, 2^680476725 is an apocalyptic number.

It is an amenable number.

680476725 is a deficient number, since it is larger than the sum of its proper divisors (538333101).

680476725 is a wasteful number, since it uses less digits than its factorization.

680476725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3024357 (or 3024349 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The square root of 680476725 is about 26085.9488039059. The cubic root of 680476725 is about 879.5713843322.

The spelling of 680476725 in words is "six hundred eighty million, four hundred seventy-six thousand, seven hundred twenty-five".