85274451 has 40 divisors (see below), whose sum is σ = 136255680. Its totient is φ = 52989552.

The previous prime is 85274443. The next prime is 85274467. The reversal of 85274451 is 15447258.

It is not a de Polignac number, because 85274451 - 2³ = 85274443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85274351) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 102700 + ... + 103526.

It is an arithmetic number, because the mean of its divisors is an integer number (3406392).

Almost surely, 2^85274451 is an apocalyptic number.

85274451 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

85274451 is a deficient number, since it is larger than the sum of its proper divisors (50981229).

85274451 is a wasteful number, since it uses less digits than its factorization.

85274451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925 (or 916 counting only the distinct ones).

The product of its digits is 44800, while the sum is 36.

The square root of 85274451 is about 9234.4166572664. The cubic root of 85274451 is about 440.1556801039.

The spelling of 85274451 in words is "eighty-five million, two hundred seventy-four thousand, four hundred fifty-one".