260624645 has 4 divisors (see below), whose sum is σ = 312749580. Its totient is φ = 208499712.

The previous prime is 260624627. The next prime is 260624699. The reversal of 260624645 is 546426062.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 179372449 + 81252196 = 13393^2 + 9014^2 .

It is a cyclic number.

It is not a de Polignac number, because 260624645 - 2¹⁰ = 260623621 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26062460 + ... + 26062469.

It is an arithmetic number, because the mean of its divisors is an integer number (78187395).

Almost surely, 2^260624645 is an apocalyptic number.

It is an amenable number.

260624645 is a deficient number, since it is larger than the sum of its proper divisors (52124935).

260624645 is an equidigital number, since it uses as much as digits as its factorization.

260624645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52124934.

The product of its (nonzero) digits is 69120, while the sum is 35.

The square root of 260624645 is about 16143.8732960836. The cubic root of 260624645 is about 638.7611492342.

The spelling of 260624645 in words is "two hundred sixty million, six hundred twenty-four thousand, six hundred forty-five".