5561215401431 has 2 divisors, whose sum is σ = 5561215401432. Its totient is φ = 5561215401430.

The previous prime is 5561215401421. The next prime is 5561215401437. The reversal of 5561215401431 is 1341045121655.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5561215401431 is a prime.

It is a super-2 number, since 2×5561215401431² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5561215401437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2780607700715 + 2780607700716.

It is an arithmetic number, because the mean of its divisors is an integer number (2780607700716).

Almost surely, 2^{5561215401431} is an apocalyptic number.

5561215401431 is a deficient number, since it is larger than the sum of its proper divisors (1).

5561215401431 is an equidigital number, since it uses as much as digits as its factorization.

5561215401431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72000, while the sum is 38.

The spelling of 5561215401431 in words is "five trillion, five hundred sixty-one billion, two hundred fifteen million, four hundred one thousand, four hundred thirty-one".