55450535531 has 2 divisors, whose sum is σ = 55450535532. Its totient is φ = 55450535530.

The previous prime is 55450535501. The next prime is 55450535533. The reversal of 55450535531 is 13553505455.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55450535531 - 2²² = 55446341227 is a prime.

It is a super-2 number, since 2×55450535531² (a number of 22 digits) contains 22 as substring.

Together with 55450535533, 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 (55450535533) 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, 27725267765 + 27725267766.

It is an arithmetic number, because the mean of its divisors is an integer number (27725267766).

Almost surely, 2^55450535531 is an apocalyptic number.

55450535531 is a deficient number, since it is larger than the sum of its proper divisors (1).

55450535531 is an equidigital number, since it uses as much as digits as its factorization.

55450535531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 562500, while the sum is 41.

The spelling of 55450535531 in words is "fifty-five billion, four hundred fifty million, five hundred thirty-five thousand, five hundred thirty-one".