1265413725 has 48 divisors (see below), whose sum is σ = 2330208000. Its totient is φ = 673263360.

The previous prime is 1265413711. The next prime is 1265413733. The reversal of 1265413725 is 5273145621.

It is not a de Polignac number, because 1265413725 - 2⁸ = 1265413469 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1265413725.

It is a congruent 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, 310501 + ... + 314549.

It is an arithmetic number, because the mean of its divisors is an integer number (48546000).

Almost surely, 2^1265413725 is an apocalyptic number.

1265413725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1265413725 is a deficient number, since it is larger than the sum of its proper divisors (1064794275).

1265413725 is a wasteful number, since it uses less digits than its factorization.

1265413725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4531 (or 4520 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 1265413725 is about 35572.6541742390. The cubic root of 1265413725 is about 1081.6269844989.

The spelling of 1265413725 in words is "one billion, two hundred sixty-five million, four hundred thirteen thousand, seven hundred twenty-five".