51404561044231 has 2 divisors, whose sum is σ = 51404561044232. Its totient is φ = 51404561044230.

The previous prime is 51404561044219. The next prime is 51404561044273. The reversal of 51404561044231 is 13244016540415.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51404561044231 - 2³¹ = 51402413560583 is a prime.

It is a super-2 number, since 2×51404561044231² (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 (21404561044231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25702280522115 + 25702280522116.

It is an arithmetic number, because the mean of its divisors is an integer number (25702280522116).

Almost surely, 2^{51404561044231} is an apocalyptic number.

51404561044231 is a deficient number, since it is larger than the sum of its proper divisors (1).

51404561044231 is an equidigital number, since it uses as much as digits as its factorization.

51404561044231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 230400, while the sum is 40.

Adding to 51404561044231 its reverse (13244016540415), we get a palindrome (64648577584646).

The spelling of 51404561044231 in words is "fifty-one trillion, four hundred four billion, five hundred sixty-one million, forty-four thousand, two hundred thirty-one".