1363775725 has 12 divisors (see below), whose sum is σ = 1821165556. Its totient is φ = 1007095680.

The previous prime is 1363775713. The next prime is 1363775753. The reversal of 1363775725 is 5275773631.

It can be written as a sum of positive squares in 6 ways, for example, as 241056676 + 1122719049 = 15526^2 + 33507^2 .

It is not a de Polignac number, because 1363775725 - 2¹⁵ = 1363742957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2097792 + ... + 2098441.

Almost surely, 2^1363775725 is an apocalyptic number.

It is an amenable number.

1363775725 is a deficient number, since it is larger than the sum of its proper divisors (457389831).

1363775725 is a wasteful number, since it uses less digits than its factorization.

1363775725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4196256 (or 4196251 counting only the distinct ones).

The product of its digits is 926100, while the sum is 46.

The square root of 1363775725 is about 36929.3342073750. The cubic root of 1363775725 is about 1108.9560091753.

The spelling of 1363775725 in words is "one billion, three hundred sixty-three million, seven hundred seventy-five thousand, seven hundred twenty-five".