1265422625 has 48 divisors (see below), whose sum is σ = 1751697792. Its totient is φ = 910764800.

The previous prime is 1265422603. The next prime is 1265422633. The reversal of 1265422625 is 5262245621.

It is not a de Polignac number, because 1265422625 - 2¹² = 1265418529 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 830114 + ... + 831636.

It is an arithmetic number, because the mean of its divisors is an integer number (36493704).

Almost surely, 2^1265422625 is an apocalyptic number.

It is an amenable number.

1265422625 is a deficient number, since it is larger than the sum of its proper divisors (486275167).

1265422625 is a wasteful number, since it uses less digits than its factorization.

1265422625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1595 (or 1568 counting only the distinct ones).

The product of its digits is 57600, while the sum is 35.

The square root of 1265422625 is about 35572.7792701105. The cubic root of 1265422625 is about 1081.6295202856.

The spelling of 1265422625 in words is "one billion, two hundred sixty-five million, four hundred twenty-two thousand, six hundred twenty-five".