1955256759431 has 2 divisors, whose sum is σ = 1955256759432. Its totient is φ = 1955256759430.

The previous prime is 1955256759383. The next prime is 1955256759479. The reversal of 1955256759431 is 1349576525591.

It is a balanced prime because it is at equal distance from previous prime (1955256759383) and next prime (1955256759479).

It is a cyclic number.

It is not a de Polignac number, because 1955256759431 - 2¹⁸ = 1955256497287 is a prime.

It is a super-2 number, since 2×1955256759431² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1955256759031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 977628379715 + 977628379716.

It is an arithmetic number, because the mean of its divisors is an integer number (977628379716).

Almost surely, 2^{1955256759431} is an apocalyptic number.

1955256759431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1955256759431 is an equidigital number, since it uses as much as digits as its factorization.

1955256759431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51030000, while the sum is 62.

The spelling of 1955256759431 in words is "one trillion, nine hundred fifty-five billion, two hundred fifty-six million, seven hundred fifty-nine thousand, four hundred thirty-one".