55916981429 has 2 divisors, whose sum is σ = 55916981430. Its totient is φ = 55916981428.

The previous prime is 55916981411. The next prime is 55916981467. The reversal of 55916981429 is 92418961955.

55916981429 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34568849329 + 21348132100 = 185927^2 + 146110^2 .

It is a cyclic number.

It is not a de Polignac number, because 55916981429 - 2²⁸ = 55648545973 is a prime.

It is a super-2 number, since 2×55916981429² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55916981479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27958490714 + 27958490715.

It is an arithmetic number, because the mean of its divisors is an integer number (27958490715).

Almost surely, 2^55916981429 is an apocalyptic number.

It is an amenable number.

55916981429 is a deficient number, since it is larger than the sum of its proper divisors (1).

55916981429 is an equidigital number, since it uses as much as digits as its factorization.

55916981429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6998400, while the sum is 59.

The spelling of 55916981429 in words is "fifty-five billion, nine hundred sixteen million, nine hundred eighty-one thousand, four hundred twenty-nine".