85273451 has 4 divisors (see below), whose sum is σ = 85816752. Its totient is φ = 84730152.

The previous prime is 85273439. The next prime is 85273457. The reversal of 85273451 is 15437258.

It is a happy number.

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 85273451 - 2¹⁰ = 85272427 is a prime.

It is a super-2 number, since 2×85273451² = 14543122890898802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85273457) 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, 271415 + ... + 271728.

It is an arithmetic number, because the mean of its divisors is an integer number (21454188).

Almost surely, 2^85273451 is an apocalyptic number.

85273451 is a deficient number, since it is larger than the sum of its proper divisors (543301).

85273451 is a wasteful number, since it uses less digits than its factorization.

85273451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543300.

The product of its digits is 33600, while the sum is 35.

The square root of 85273451 is about 9234.3625118359. The cubic root of 85273451 is about 440.1539595518.

The spelling of 85273451 in words is "eighty-five million, two hundred seventy-three thousand, four hundred fifty-one".