1565276425 has 12 divisors (see below), whose sum is σ = 1955763216. Its totient is φ = 1242659600.

The previous prime is 1565276399. The next prime is 1565276473. The reversal of 1565276425 is 5246725651.

It is not a de Polignac number, because 1565276425 - 2⁹ = 1565275913 is a prime.

It is a Duffinian 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, 235699 + ... + 242248.

It is an arithmetic number, because the mean of its divisors is an integer number (162980268).

Almost surely, 2^1565276425 is an apocalyptic number.

It is an amenable number.

1565276425 is a deficient number, since it is larger than the sum of its proper divisors (390486791).

1565276425 is a wasteful number, since it uses less digits than its factorization.

1565276425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478088 (or 478083 counting only the distinct ones).

The product of its digits is 504000, while the sum is 43.

The square root of 1565276425 is about 39563.5744719812. The cubic root of 1565276425 is about 1161.0841096175.

The spelling of 1565276425 in words is "one billion, five hundred sixty-five million, two hundred seventy-six thousand, four hundred twenty-five".