55509475235351 has 2 divisors, whose sum is σ = 55509475235352. Its totient is φ = 55509475235350.

The previous prime is 55509475235257. The next prime is 55509475235353. The reversal of 55509475235351 is 15353257490555.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55509475235351 - 2²² = 55509471041047 is a prime.

Together with 55509475235353, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55509475235353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27754737617675 + 27754737617676.

It is an arithmetic number, because the mean of its divisors is an integer number (27754737617676).

Almost surely, 2^{55509475235351} is an apocalyptic number.

55509475235351 is a deficient number, since it is larger than the sum of its proper divisors (1).

55509475235351 is an equidigital number, since it uses as much as digits as its factorization.

55509475235351 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70875000, while the sum is 59.

The spelling of 55509475235351 in words is "fifty-five trillion, five hundred nine billion, four hundred seventy-five million, two hundred thirty-five thousand, three hundred fifty-one".