1276264525 has 6 divisors (see below), whose sum is σ = 1582568042. Its totient is φ = 1021011600.

The previous prime is 1276264499. The next prime is 1276264531. The reversal of 1276264525 is 5254626721.

It can be written as a sum of positive squares in 3 ways, for example, as 286658761 + 989605764 = 16931^2 + 31458^2 .

It is not a de Polignac number, because 1276264525 - 2¹⁵ = 1276231757 is a prime.

It is a super-2 number, since 2×1276264525² = 3257702275546951250, which contains 22 as substring.

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 5 ways as a sum of consecutive naturals, for example, 25525266 + ... + 25525315.

Almost surely, 2^1276264525 is an apocalyptic number.

It is an amenable number.

1276264525 is a deficient number, since it is larger than the sum of its proper divisors (306303517).

1276264525 is an equidigital number, since it uses as much as digits as its factorization.

1276264525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51050591 (or 51050586 counting only the distinct ones).

The product of its digits is 201600, while the sum is 40.

The square root of 1276264525 is about 35724.8446462682. The cubic root of 1276264525 is about 1084.7098050956.

The spelling of 1276264525 in words is "one billion, two hundred seventy-six million, two hundred sixty-four thousand, five hundred twenty-five".