1264807425 has 24 divisors (see below), whose sum is σ = 2389884736. Its totient is φ = 578197440.

The previous prime is 1264807393. The next prime is 1264807469. The reversal of 1264807425 is 5247084621.

It is not a de Polignac number, because 1264807425 - 2⁵ = 1264807393 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1204054 + ... + 1205103.

Almost surely, 2^1264807425 is an apocalyptic number.

1264807425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1264807425 is a deficient number, since it is larger than the sum of its proper divisors (1125077311).

1264807425 is a wasteful number, since it uses less digits than its factorization.

1264807425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2409177 (or 2409172 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 1264807425 is about 35564.1311576706. The cubic root of 1264807425 is about 1081.4542095948.

The spelling of 1264807425 in words is "one billion, two hundred sixty-four million, eight hundred seven thousand, four hundred twenty-five".