1551552713 has 2 divisors, whose sum is σ = 1551552714. Its totient is φ = 1551552712.

The previous prime is 1551552683. The next prime is 1551552721. The reversal of 1551552713 is 3172551551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1469342224 + 82210489 = 38332^2 + 9067^2 .

It is a cyclic number.

It is not a de Polignac number, because 1551552713 - 2¹⁸ = 1551290569 is a prime.

It is not a weakly prime, because it can be changed into another prime (1551552763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 775776356 + 775776357.

It is an arithmetic number, because the mean of its divisors is an integer number (775776357).

Almost surely, 2^1551552713 is an apocalyptic number.

It is an amenable number.

1551552713 is a deficient number, since it is larger than the sum of its proper divisors (1).

1551552713 is an equidigital number, since it uses as much as digits as its factorization.

1551552713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26250, while the sum is 35.

The square root of 1551552713 is about 39389.7539088530. The cubic root of 1551552713 is about 1157.6808383512.

The spelling of 1551552713 in words is "one billion, five hundred fifty-one million, five hundred fifty-two thousand, seven hundred thirteen".