97517251255 has 8 divisors (see below), whose sum is σ = 117022604400. Its totient is φ = 78012532416.

The previous prime is 97517251231. The next prime is 97517251259. The reversal of 97517251255 is 55215271579.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97517251255 is a prime.

It is a super-2 number, since 2×97517251255² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 97517251199 and 97517251208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97517251259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300451 + ... + 534139.

It is an arithmetic number, because the mean of its divisors is an integer number (14627825550).

Almost surely, 2^97517251255 is an apocalyptic number.

97517251255 is a deficient number, since it is larger than the sum of its proper divisors (19505353145).

97517251255 is a wasteful number, since it uses less digits than its factorization.

97517251255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317153.

The product of its digits is 1102500, while the sum is 49.

The spelling of 97517251255 in words is "ninety-seven billion, five hundred seventeen million, two hundred fifty-one thousand, two hundred fifty-five".