85451501 has 4 divisors (see below), whose sum is σ = 86066400. Its totient is φ = 84836604.

The previous prime is 85451497. The next prime is 85451521. The reversal of 85451501 is 10515458.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85451501 - 2² = 85451497 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 (85451521) 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, 307241 + ... + 307518.

It is an arithmetic number, because the mean of its divisors is an integer number (21516600).

Almost surely, 2^85451501 is an apocalyptic number.

It is an amenable number.

85451501 is a deficient number, since it is larger than the sum of its proper divisors (614899).

85451501 is a wasteful number, since it uses less digits than its factorization.

85451501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614898.

The product of its (nonzero) digits is 4000, while the sum is 29.

The square root of 85451501 is about 9243.9981068799. The cubic root of 85451501 is about 440.4600920778.

Adding to 85451501 its reverse (10515458), we get a palindrome (95966959).

The spelling of 85451501 in words is "eighty-five million, four hundred fifty-one thousand, five hundred one".