85237537 has 16 divisors (see below), whose sum is σ = 106988544. Its totient is φ = 65970000.

The previous prime is 85237519. The next prime is 85237549. The reversal of 85237537 is 73573258.

It is a cyclic number.

It is not a de Polignac number, because 85237537 - 2¹¹ = 85235489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85237537.

It is not an unprimeable number, because it can be changed into a prime (85235537) 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, 7962 + ... + 15292.

It is an arithmetic number, because the mean of its divisors is an integer number (6686784).

Almost surely, 2^85237537 is an apocalyptic number.

It is an amenable number.

85237537 is a deficient number, since it is larger than the sum of its proper divisors (21751007).

85237537 is a wasteful number, since it uses less digits than its factorization.

85237537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7500.

The product of its digits is 176400, while the sum is 40.

The square root of 85237537 is about 9232.4177223520. The cubic root of 85237537 is about 440.0921587262.

The spelling of 85237537 in words is "eighty-five million, two hundred thirty-seven thousand, five hundred thirty-seven".