1260725556 has 24 divisors (see below), whose sum is σ = 3004283520. Its totient is φ = 411300352.

The previous prime is 1260725537. The next prime is 1260725567. The reversal of 1260725556 is 6555270621.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1117101 + ... + 1118228.

It is an arithmetic number, because the mean of its divisors is an integer number (125178480).

Almost surely, 2^1260725556 is an apocalyptic number.

It is an amenable number.

1260725556 is an abundant number, since it is smaller than the sum of its proper divisors (1743557964).

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

1260725556 is a wasteful number, since it uses less digits than its factorization.

1260725556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2235383 (or 2235381 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 39.

The square root of 1260725556 is about 35506.6973400794. The cubic root of 1260725556 is about 1080.2895759854.

The spelling of 1260725556 in words is "one billion, two hundred sixty million, seven hundred twenty-five thousand, five hundred fifty-six".