85490554 has 4 divisors (see below), whose sum is σ = 128235834. Its totient is φ = 42745276.

The previous prime is 85490507. The next prime is 85490567. The reversal of 85490554 is 45509458.

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., 77845329 + 7645225 = 8823^2 + 2765^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21372637 + ... + 21372640.

Almost surely, 2^85490554 is an apocalyptic number.

85490554 is a deficient number, since it is larger than the sum of its proper divisors (42745280).

85490554 is a wasteful number, since it uses less digits than its factorization.

85490554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42745279.

The product of its (nonzero) digits is 144000, while the sum is 40.

The square root of 85490554 is about 9246.1102091636. The cubic root of 85490554 is about 440.5271814716.

The spelling of 85490554 in words is "eighty-five million, four hundred ninety thousand, five hundred fifty-four".