97522251 has 16 divisors (see below), whose sum is σ = 138093984. Its totient is φ = 61005824.

The previous prime is 97522247. The next prime is 97522253. The reversal of 97522251 is 15222579.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 97522251 - 2² = 97522247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97522253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15295 + ... + 20711.

It is an arithmetic number, because the mean of its divisors is an integer number (8630874).

Almost surely, 2^97522251 is an apocalyptic number.

97522251 is a deficient number, since it is larger than the sum of its proper divisors (40571733).

97522251 is a wasteful number, since it uses less digits than its factorization.

97522251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5790.

The product of its digits is 12600, while the sum is 33.

The square root of 97522251 is about 9875.3354879720. The cubic root of 97522251 is about 460.2932141303.

The spelling of 97522251 in words is "ninety-seven million, five hundred twenty-two thousand, two hundred fifty-one".