15610753249 has 27 divisors (see below), whose sum is σ = 19678112793. Its totient is φ = 12342369312.

The previous prime is 15610753211. The next prime is 15610753303. The reversal of 15610753249 is 94235701651.

The square root of 15610753249 is 124943.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1249127649 + 14361625600 = 35343^2 + 119840^2 .

It is not a de Polignac number, because 15610753249 - 2²⁷ = 15476535521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15610753349) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 11369127 + ... + 11370499.

Almost surely, 2^15610753249 is an apocalyptic number.

15610753249 is the 124943-rd square number.

15610753249 is the 62472-nd centered octagonal number.

It is an amenable number.

15610753249 is a deficient number, since it is larger than the sum of its proper divisors (4067359544).

15610753249 is an frugal number, since it uses more digits than its factorization.

15610753249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2786 (or 1393 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 43.

The spelling of 15610753249 in words is "fifteen billion, six hundred ten million, seven hundred fifty-three thousand, two hundred forty-nine".