55519075297 has 72 divisors (see below), whose sum is σ = 69392598912. Its totient is φ = 44272166400.

The previous prime is 55519075291. The next prime is 55519075307. The reversal of 55519075297 is 79257091555.

It is a happy number.

It is not a de Polignac number, because 55519075297 - 2¹¹ = 55519073249 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55519075291) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 178517772 + ... + 178518082.

It is an arithmetic number, because the mean of its divisors is an integer number (963786096).

Almost surely, 2^55519075297 is an apocalyptic number.

It is an amenable number.

55519075297 is a deficient number, since it is larger than the sum of its proper divisors (13873523615).

55519075297 is a wasteful number, since it uses less digits than its factorization.

55519075297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539 (or 509 counting only the distinct ones).

The product of its (nonzero) digits is 4961250, while the sum is 55.

The spelling of 55519075297 in words is "fifty-five billion, five hundred nineteen million, seventy-five thousand, two hundred ninety-seven".