85540361 has 4 divisors (see below), whose sum is σ = 86942724. Its totient is φ = 84138000.

The previous prime is 85540333. The next prime is 85540363. The reversal of 85540361 is 16304558.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 39300361 + 46240000 = 6269^2 + 6800^2 .

It is a cyclic number.

It is not a de Polignac number, because 85540361 - 2⁶ = 85540297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85540363) 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, 701090 + ... + 701211.

It is an arithmetic number, because the mean of its divisors is an integer number (21735681).

Almost surely, 2^85540361 is an apocalyptic number.

It is an amenable number.

85540361 is a deficient number, since it is larger than the sum of its proper divisors (1402363).

85540361 is a wasteful number, since it uses less digits than its factorization.

85540361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1402362.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 85540361 is about 9248.8032198766. The cubic root of 85540361 is about 440.6127155907.

The spelling of 85540361 in words is "eighty-five million, five hundred forty thousand, three hundred sixty-one".