55504770731 has 2 divisors, whose sum is σ = 55504770732. Its totient is φ = 55504770730.

The previous prime is 55504770709. The next prime is 55504770733. The reversal of 55504770731 is 13707740555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55504770731 - 2⁶ = 55504770667 is a prime.

It is a super-2 number, since 2×55504770731² (a number of 22 digits) contains 22 as substring.

Together with 55504770733, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55504770733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27752385365 + 27752385366.

It is an arithmetic number, because the mean of its divisors is an integer number (27752385366).

Almost surely, 2^55504770731 is an apocalyptic number.

55504770731 is a deficient number, since it is larger than the sum of its proper divisors (1).

55504770731 is an equidigital number, since it uses as much as digits as its factorization.

55504770731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 514500, while the sum is 44.

The spelling of 55504770731 in words is "fifty-five billion, five hundred four million, seven hundred seventy thousand, seven hundred thirty-one".