1294265555 has 32 divisors (see below), whose sum is σ = 1747519488. Its totient is φ = 912124800.

The previous prime is 1294265449. The next prime is 1294265569. The reversal of 1294265555 is 5555624921.

It is not a de Polignac number, because 1294265555 - 2¹⁸ = 1294003411 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 263825 + ... + 268685.

It is an arithmetic number, because the mean of its divisors is an integer number (54609984).

Almost surely, 2^1294265555 is an apocalyptic number.

1294265555 is a deficient number, since it is larger than the sum of its proper divisors (453253933).

1294265555 is a wasteful number, since it uses less digits than its factorization.

1294265555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5027.

The product of its digits is 540000, while the sum is 44.

The square root of 1294265555 is about 35975.9024209261. The cubic root of 1294265555 is about 1089.7857657686.

The spelling of 1294265555 in words is "one billion, two hundred ninety-four million, two hundred sixty-five thousand, five hundred fifty-five".