97563233531 has 16 divisors (see below), whose sum is σ = 101114206848. Its totient is φ = 94078108800.

The previous prime is 97563233519. The next prime is 97563233569. The reversal of 97563233531 is 13533236579.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97563233531 is a prime.

It is a super-2 number, since 2×97563233531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97563223531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4278821 + ... + 4301561.

It is an arithmetic number, because the mean of its divisors is an integer number (6319637928).

Almost surely, 2^97563233531 is an apocalyptic number.

97563233531 is a deficient number, since it is larger than the sum of its proper divisors (3550973317).

97563233531 is a wasteful number, since it uses less digits than its factorization.

97563233531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24182.

The product of its digits is 1530900, while the sum is 47.

The spelling of 97563233531 in words is "ninety-seven billion, five hundred sixty-three million, two hundred thirty-three thousand, five hundred thirty-one".