1255880276 has 24 divisors (see below), whose sum is σ = 2518239360. Its totient is φ = 536846112.

The previous prime is 1255880273. The next prime is 1255880303. The reversal of 1255880276 is 6720885521.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255880273) 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, 46760 + ... + 68543.

It is an arithmetic number, because the mean of its divisors is an integer number (104926640).

Almost surely, 2^1255880276 is an apocalyptic number.

It is an amenable number.

1255880276 is an abundant number, since it is smaller than the sum of its proper divisors (1262359084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1255880276 is a wasteful number, since it uses less digits than its factorization.

1255880276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115703 (or 115701 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 44.

The square root of 1255880276 is about 35438.4011490361. The cubic root of 1255880276 is about 1078.9038592757.

The spelling of 1255880276 in words is "one billion, two hundred fifty-five million, eight hundred eighty thousand, two hundred seventy-six".