97550611 has 4 divisors (see below), whose sum is σ = 100187152. Its totient is φ = 94914072.

The previous prime is 97550587. The next prime is 97550623. The reversal of 97550611 is 11605579.

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

It is a cyclic number.

It is not a de Polignac number, because 97550611 - 2⁹ = 97550099 is a prime.

It is a super-2 number, since 2×97550611² = 19032243412946642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97550911) 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, 1318215 + ... + 1318288.

It is an arithmetic number, because the mean of its divisors is an integer number (25046788).

Almost surely, 2^97550611 is an apocalyptic number.

97550611 is a deficient number, since it is larger than the sum of its proper divisors (2636541).

97550611 is a wasteful number, since it uses less digits than its factorization.

97550611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2636540.

The product of its (nonzero) digits is 9450, while the sum is 34.

The square root of 97550611 is about 9876.7712841799. The cubic root of 97550611 is about 460.3378283944.

The spelling of 97550611 in words is "ninety-seven million, five hundred fifty thousand, six hundred eleven".