85356280057 has 4 divisors (see below), whose sum is σ = 85356876276. Its totient is φ = 85355683840.

The previous prime is 85356280027. The next prime is 85356280091. The reversal of 85356280057 is 75008265358.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4053741561 + 81302538496 = 63669^2 + 285136^2 .

It is a cyclic number.

It is not a de Polignac number, because 85356280057 - 2⁷ = 85356279929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85356280027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60153 + ... + 417529.

It is an arithmetic number, because the mean of its divisors is an integer number (21339219069).

Almost surely, 2^85356280057 is an apocalyptic number.

It is an amenable number.

85356280057 is a deficient number, since it is larger than the sum of its proper divisors (596219).

85356280057 is a wasteful number, since it uses less digits than its factorization.

85356280057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596218.

The product of its (nonzero) digits is 2016000, while the sum is 49.

The spelling of 85356280057 in words is "eighty-five billion, three hundred fifty-six million, two hundred eighty thousand, fifty-seven".