253561426031 has 2 divisors, whose sum is σ = 253561426032. Its totient is φ = 253561426030.

The previous prime is 253561425991. The next prime is 253561426037. The reversal of 253561426031 is 130624165352.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253561426031 is a prime.

It is a super-2 number, since 2×253561426031² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253561426037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126780713015 + 126780713016.

It is an arithmetic number, because the mean of its divisors is an integer number (126780713016).

Almost surely, 2^253561426031 is an apocalyptic number.

253561426031 is a deficient number, since it is larger than the sum of its proper divisors (1).

253561426031 is an equidigital number, since it uses as much as digits as its factorization.

253561426031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 253561426031 in words is "two hundred fifty-three billion, five hundred sixty-one million, four hundred twenty-six thousand, thirty-one".