85432511 has 8 divisors (see below), whose sum is σ = 91044864. Its totient is φ = 79978360.

The previous prime is 85432499. The next prime is 85432537. The reversal of 85432511 is 11523458.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85432511 - 2⁶ = 85432447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85432541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38435 + ... + 40596.

It is an arithmetic number, because the mean of its divisors is an integer number (11380608).

Almost surely, 2^85432511 is an apocalyptic number.

85432511 is a deficient number, since it is larger than the sum of its proper divisors (5612353).

85432511 is a wasteful number, since it uses less digits than its factorization.

85432511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79101.

The product of its digits is 4800, while the sum is 29.

The square root of 85432511 is about 9242.9708968491. The cubic root of 85432511 is about 440.4274616510.

Adding to 85432511 its reverse (11523458), we get a palindrome (96955969).

The spelling of 85432511 in words is "eighty-five million, four hundred thirty-two thousand, five hundred eleven".