85407524 has 12 divisors (see below), whose sum is σ = 158255244. Its totient is φ = 40191744.

The previous prime is 85407521. The next prime is 85407559. The reversal of 85407524 is 42570458.

It can be written as a sum of positive squares in 2 ways, for example, as 54493924 + 30913600 = 7382^2 + 5560^2 .

It is not an unprimeable number, because it can be changed into a prime (85407521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 627929 + ... + 628064.

It is an arithmetic number, because the mean of its divisors is an integer number (13187937).

Almost surely, 2^85407524 is an apocalyptic number.

It is an amenable number.

85407524 is a deficient number, since it is larger than the sum of its proper divisors (72847720).

85407524 is a wasteful number, since it uses less digits than its factorization.

85407524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256014 (or 1256012 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 35.

The square root of 85407524 is about 9241.6191222101. The cubic root of 85407524 is about 440.3845192398.

The spelling of 85407524 in words is "eighty-five million, four hundred seven thousand, five hundred twenty-four".