245500311631 has 2 divisors, whose sum is σ = 245500311632. Its totient is φ = 245500311630.

The previous prime is 245500311619. The next prime is 245500311649. The reversal of 245500311631 is 136113005542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245500311631 - 2²³ = 245491923023 is a prime.

It is a super-2 number, since 2×245500311631² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 245500311593 and 245500311602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245500311671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122750155815 + 122750155816.

It is an arithmetic number, because the mean of its divisors is an integer number (122750155816).

Almost surely, 2^245500311631 is an apocalyptic number.

245500311631 is a deficient number, since it is larger than the sum of its proper divisors (1).

245500311631 is an equidigital number, since it uses as much as digits as its factorization.

245500311631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 31.

The spelling of 245500311631 in words is "two hundred forty-five billion, five hundred million, three hundred eleven thousand, six hundred thirty-one".