1255701556 has 6 divisors (see below), whose sum is σ = 2197477730. Its totient is φ = 627850776.

The previous prime is 1255701553. The next prime is 1255701563. The reversal of 1255701556 is 6551075521.

It can be written as a sum of positive squares in only one way, i.e., 943472656 + 312228900 = 30716^2 + 17670^2 .

It is a super-2 number, since 2×1255701556² = 3153572795481642272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255701553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156962691 + ... + 156962698.

Almost surely, 2^1255701556 is an apocalyptic number.

It is an amenable number.

1255701556 is a deficient number, since it is larger than the sum of its proper divisors (941776174).

1255701556 is a wasteful number, since it uses less digits than its factorization.

1255701556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313925393 (or 313925391 counting only the distinct ones).

The product of its (nonzero) digits is 52500, while the sum is 37.

The square root of 1255701556 is about 35435.8795008675. The cubic root of 1255701556 is about 1078.8526784828.

The spelling of 1255701556 in words is "one billion, two hundred fifty-five million, seven hundred one thousand, five hundred fifty-six".