97455561 has 16 divisors (see below), whose sum is σ = 151536000. Its totient is φ = 55688304.

The previous prime is 97455559. The next prime is 97455563. The reversal of 97455561 is 16555479.

It is an interprime number because it is at equal distance from previous prime (97455559) and next prime (97455563).

It is not a de Polignac number, because 97455561 - 2¹ = 97455559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97455563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46326 + ... + 48383.

It is an arithmetic number, because the mean of its divisors is an integer number (9471000).

Almost surely, 2^97455561 is an apocalyptic number.

It is an amenable number.

97455561 is a deficient number, since it is larger than the sum of its proper divisors (54080439).

97455561 is an equidigital number, since it uses as much as digits as its factorization.

97455561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94733 (or 94719 counting only the distinct ones).

The product of its digits is 189000, while the sum is 42.

The square root of 97455561 is about 9871.9583163626. The cubic root of 97455561 is about 460.1882672965.

The spelling of 97455561 in words is "ninety-seven million, four hundred fifty-five thousand, five hundred sixty-one".