55146555523 has 2 divisors, whose sum is σ = 55146555524. Its totient is φ = 55146555522.

The previous prime is 55146555517. The next prime is 55146555553. The reversal of 55146555523 is 32555564155.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55146555523 - 2⁹ = 55146555011 is a prime.

It is a super-2 number, since 2×55146555523² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55146555553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27573277761 + 27573277762.

It is an arithmetic number, because the mean of its divisors is an integer number (27573277762).

Almost surely, 2^55146555523 is an apocalyptic number.

55146555523 is a deficient number, since it is larger than the sum of its proper divisors (1).

55146555523 is an equidigital number, since it uses as much as digits as its factorization.

55146555523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2250000, while the sum is 46.

The spelling of 55146555523 in words is "fifty-five billion, one hundred forty-six million, five hundred fifty-five thousand, five hundred twenty-three".