85250553 has 32 divisors (see below), whose sum is σ = 122069376. Its totient is φ = 52835328.

The previous prime is 85250551. The next prime is 85250567. The reversal of 85250553 is 35505258.

It is not a de Polignac number, because 85250553 - 2¹ = 85250551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85250551) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 252801 + ... + 253137.

It is an arithmetic number, because the mean of its divisors is an integer number (3814668).

Almost surely, 2^85250553 is an apocalyptic number.

It is an amenable number.

85250553 is a deficient number, since it is larger than the sum of its proper divisors (36818823).

85250553 is a wasteful number, since it uses less digits than its factorization.

85250553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473.

The product of its (nonzero) digits is 30000, while the sum is 33.

The square root of 85250553 is about 9233.1226028901. The cubic root of 85250553 is about 440.1145586695.

The spelling of 85250553 in words is "eighty-five million, two hundred fifty thousand, five hundred fifty-three".