85531466 has 4 divisors (see below), whose sum is σ = 128297202. Its totient is φ = 42765732.

The previous prime is 85531451. The next prime is 85531477. The reversal of 85531466 is 66413558.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 72607441 + 12924025 = 8521^2 + 3595^2 .

It is a super-2 number, since 2×85531466² = 14631263352218312, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21382865 + ... + 21382868.

Almost surely, 2^85531466 is an apocalyptic number.

85531466 is a deficient number, since it is larger than the sum of its proper divisors (42765736).

85531466 is a wasteful number, since it uses less digits than its factorization.

85531466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42765735.

The product of its digits is 86400, while the sum is 38.

The square root of 85531466 is about 9248.3223343480. The cubic root of 85531466 is about 440.5974425433.

The spelling of 85531466 in words is "eighty-five million, five hundred thirty-one thousand, four hundred sixty-six".