1255707772 has 48 divisors (see below), whose sum is σ = 2494084320. Its totient is φ = 547948800.

The previous prime is 1255707767. The next prime is 1255707787. The reversal of 1255707772 is 2777075521.

It is a super-2 number, since 2×1255707772² = 3153604017322407968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228238 + ... + 233674.

It is an arithmetic number, because the mean of its divisors is an integer number (51960090).

Almost surely, 2^1255707772 is an apocalyptic number.

It is an amenable number.

1255707772 is a deficient number, since it is larger than the sum of its proper divisors (1238376548).

1255707772 is a wasteful number, since it uses less digits than its factorization.

1255707772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5662 (or 5660 counting only the distinct ones).

The product of its (nonzero) digits is 240100, while the sum is 43.

The square root of 1255707772 is about 35435.9672084734. The cubic root of 1255707772 is about 1078.8544586662.

The spelling of 1255707772 in words is "one billion, two hundred fifty-five million, seven hundred seven thousand, seven hundred seventy-two".