56120403551 has 2 divisors, whose sum is σ = 56120403552. Its totient is φ = 56120403550.

The previous prime is 56120403527. The next prime is 56120403583. The reversal of 56120403551 is 15530402165.

It is an a-pointer prime, because the next prime (56120403583) can be obtained adding 56120403551 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56120403551 - 2⁶ = 56120403487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56120403511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28060201775 + 28060201776.

It is an arithmetic number, because the mean of its divisors is an integer number (28060201776).

Almost surely, 2^56120403551 is an apocalyptic number.

56120403551 is a deficient number, since it is larger than the sum of its proper divisors (1).

56120403551 is an equidigital number, since it uses as much as digits as its factorization.

56120403551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18000, while the sum is 32.

The spelling of 56120403551 in words is "fifty-six billion, one hundred twenty million, four hundred three thousand, five hundred fifty-one".