51435242451031 has 2 divisors, whose sum is σ = 51435242451032. Its totient is φ = 51435242451030.

The previous prime is 51435242451007. The next prime is 51435242451053. The reversal of 51435242451031 is 13015424253415.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51435242451031 is a prime.

It is a super-2 number, since 2×51435242451031² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51435042451031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25717621225515 + 25717621225516.

It is an arithmetic number, because the mean of its divisors is an integer number (25717621225516).

Almost surely, 2^{51435242451031} is an apocalyptic number.

51435242451031 is a deficient number, since it is larger than the sum of its proper divisors (1).

51435242451031 is an equidigital number, since it uses as much as digits as its factorization.

51435242451031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288000, while the sum is 40.

The spelling of 51435242451031 in words is "fifty-one trillion, four hundred thirty-five billion, two hundred forty-two million, four hundred fifty-one thousand, thirty-one".