97505218 has 4 divisors (see below), whose sum is σ = 146257830. Its totient is φ = 48752608.

The previous prime is 97505203. The next prime is 97505227. The reversal of 97505218 is 81250579.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 91068849 + 6436369 = 9543^2 + 2537^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24376303 + ... + 24376306.

Almost surely, 2^97505218 is an apocalyptic number.

97505218 is a deficient number, since it is larger than the sum of its proper divisors (48752612).

97505218 is a wasteful number, since it uses less digits than its factorization.

97505218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48752611.

The product of its (nonzero) digits is 25200, while the sum is 37.

The square root of 97505218 is about 9874.4730492315. The cubic root of 97505218 is about 460.2664146710.

The spelling of 97505218 in words is "ninety-seven million, five hundred five thousand, two hundred eighteen".