1266492925 has 6 divisors (see below), whose sum is σ = 1570451258. Its totient is φ = 1013194320.

The previous prime is 1266492917. The next prime is 1266492961. The reversal of 1266492925 is 5292946621.

It can be written as a sum of positive squares in 3 ways, for example, as 222039801 + 1044453124 = 14901^2 + 32318^2 .

It is not a de Polignac number, because 1266492925 - 2³ = 1266492917 is a prime.

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, 25329834 + ... + 25329883.

Almost surely, 2^1266492925 is an apocalyptic number.

It is an amenable number.

1266492925 is a deficient number, since it is larger than the sum of its proper divisors (303958333).

1266492925 is an equidigital number, since it uses as much as digits as its factorization.

1266492925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50659727 (or 50659722 counting only the distinct ones).

The product of its digits is 466560, while the sum is 46.

The square root of 1266492925 is about 35587.8198967006. The cubic root of 1266492925 is about 1081.9343833458.

The spelling of 1266492925 in words is "one billion, two hundred sixty-six million, four hundred ninety-two thousand, nine hundred twenty-five".