626561245 has 16 divisors (see below), whose sum is σ = 762600960. Its totient is φ = 494118144.

The previous prime is 626561171. The next prime is 626561261. The reversal of 626561245 is 542165626.

It is a cyclic number.

It is not a de Polignac number, because 626561245 - 2¹⁷ = 626430173 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 482437 + ... + 483733.

It is an arithmetic number, because the mean of its divisors is an integer number (47662560).

Almost surely, 2^626561245 is an apocalyptic number.

It is an amenable number.

626561245 is a deficient number, since it is larger than the sum of its proper divisors (136039715).

626561245 is a wasteful number, since it uses less digits than its factorization.

626561245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2604.

The product of its digits is 86400, while the sum is 37.

The square root of 626561245 is about 25031.2054244297. The cubic root of 626561245 is about 855.6992990772.

The spelling of 626561245 in words is "six hundred twenty-six million, five hundred sixty-one thousand, two hundred forty-five".