5657532649 has 2 divisors, whose sum is σ = 5657532650. Its totient is φ = 5657532648.

The previous prime is 5657532589. The next prime is 5657532667. The reversal of 5657532649 is 9462357565.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5299112025 + 358420624 = 72795^2 + 18932^2 .

It is a cyclic number.

It is not a de Polignac number, because 5657532649 - 2⁷ = 5657532521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5657532596 and 5657532605.

It is not a weakly prime, because it can be changed into another prime (5657532449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2828766324 + 2828766325.

It is an arithmetic number, because the mean of its divisors is an integer number (2828766325).

Almost surely, 2^5657532649 is an apocalyptic number.

It is an amenable number.

5657532649 is a deficient number, since it is larger than the sum of its proper divisors (1).

5657532649 is an equidigital number, since it uses as much as digits as its factorization.

5657532649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6804000, while the sum is 52.

The square root of 5657532649 is about 75216.5716381703. The cubic root of 5657532649 is about 1781.8686609185.

The spelling of 5657532649 in words is "five billion, six hundred fifty-seven million, five hundred thirty-two thousand, six hundred forty-nine".