97980255 has 48 divisors (see below), whose sum is σ = 176772960. Its totient is φ = 50160384.

The previous prime is 97980229. The next prime is 97980257. The reversal of 97980255 is 55208979.

It is a happy number.

It is not a de Polignac number, because 97980255 - 2⁶ = 97980191 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 97980255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97980257) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 137841 + ... + 138549.

It is an arithmetic number, because the mean of its divisors is an integer number (3682770).

Almost surely, 2^97980255 is an apocalyptic number.

97980255 is a deficient number, since it is larger than the sum of its proper divisors (78792705).

97980255 is a wasteful number, since it uses less digits than its factorization.

97980255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840 (or 837 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 45.

The square root of 97980255 is about 9898.4976132745. The cubic root of 97980255 is about 461.0126634987.

The spelling of 97980255 in words is "ninety-seven million, nine hundred eighty thousand, two hundred fifty-five".