1255479772 has 24 divisors (see below), whose sum is σ = 2270043776. Its totient is φ = 607179888.

The previous prime is 1255479763. The next prime is 1255479773. The reversal of 1255479772 is 2779745521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255479773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17718 + ... + 53149.

Almost surely, 2^1255479772 is an apocalyptic number.

It is an amenable number.

1255479772 is a deficient number, since it is larger than the sum of its proper divisors (1014564004).

1255479772 is a wasteful number, since it uses less digits than its factorization.

1255479772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71017 (or 71015 counting only the distinct ones).

The product of its digits is 1234800, while the sum is 49.

The square root of 1255479772 is about 35432.7499920624. The cubic root of 1255479772 is about 1078.7891585194.

The spelling of 1255479772 in words is "one billion, two hundred fifty-five million, four hundred seventy-nine thousand, seven hundred seventy-two".