1255405537 has 2 divisors, whose sum is σ = 1255405538. Its totient is φ = 1255405536.

The previous prime is 1255405507. The next prime is 1255405553. The reversal of 1255405537 is 7355045521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1104631696 + 150773841 = 33236^2 + 12279^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1255405537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1255405496 and 1255405505.

It is not a weakly prime, because it can be changed into another prime (1255405507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627702768 + 627702769.

It is an arithmetic number, because the mean of its divisors is an integer number (627702769).

Almost surely, 2^1255405537 is an apocalyptic number.

It is an amenable number.

1255405537 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255405537 is an equidigital number, since it uses as much as digits as its factorization.

1255405537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105000, while the sum is 37.

The square root of 1255405537 is about 35431.7024287572. The cubic root of 1255405537 is about 1078.7678956010.

The spelling of 1255405537 in words is "one billion, two hundred fifty-five million, four hundred five thousand, five hundred thirty-seven".