97520312063 has 4 divisors (see below), whose sum is σ = 98025598848. Its totient is φ = 97015025280.

The previous prime is 97520312051. The next prime is 97520312093. The reversal of 97520312063 is 36021302579.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36021302579 = 81517 ⋅441887.

It is a cyclic number.

It is not a de Polignac number, because 97520312063 - 2⁸ = 97520311807 is a prime.

It is a super-2 number, since 2×97520312063² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97520312093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252643103 + ... + 252643488.

It is an arithmetic number, because the mean of its divisors is an integer number (24506399712).

Almost surely, 2^97520312063 is an apocalyptic number.

97520312063 is a deficient number, since it is larger than the sum of its proper divisors (505286785).

97520312063 is a wasteful number, since it uses less digits than its factorization.

97520312063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505286784.

The product of its (nonzero) digits is 68040, while the sum is 38.

The spelling of 97520312063 in words is "ninety-seven billion, five hundred twenty million, three hundred twelve thousand, sixty-three".