715522649 has 2 divisors, whose sum is σ = 715522650. Its totient is φ = 715522648.

The previous prime is 715522627. The next prime is 715522669. The reversal of 715522649 is 946225517.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 679905625 + 35617024 = 26075^2 + 5968^2 .

It is a cyclic number.

It is not a de Polignac number, because 715522649 - 2²⁴ = 698745433 is a prime.

It is a super-2 number, since 2×715522649² = 1023945322463954402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (715522669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 357761324 + 357761325.

It is an arithmetic number, because the mean of its divisors is an integer number (357761325).

Almost surely, 2^715522649 is an apocalyptic number.

It is an amenable number.

715522649 is a deficient number, since it is larger than the sum of its proper divisors (1).

715522649 is an equidigital number, since it uses as much as digits as its factorization.

715522649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 151200, while the sum is 41.

The square root of 715522649 is about 26749.2551111241. The cubic root of 715522649 is about 894.4192310124.

The spelling of 715522649 in words is "seven hundred fifteen million, five hundred twenty-two thousand, six hundred forty-nine".