85525759 has 32 divisors (see below), whose sum is σ = 104011776. Its totient is φ = 69419520.

The previous prime is 85525757. The next prime is 85525763. The reversal of 85525759 is 95752558.

85525759 = T₂₉₇ + T₂₉₈ + ... + T₈₁₃.

It is a cyclic number.

It is not a de Polignac number, because 85525759 - 2¹ = 85525757 is a prime.

Its product of digits (630000) is a multiple of the sum of its prime divisors (375).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85525757) 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, 325062 + ... + 325324.

It is an arithmetic number, because the mean of its divisors is an integer number (3250368).

Almost surely, 2^85525759 is an apocalyptic number.

85525759 is a deficient number, since it is larger than the sum of its proper divisors (18486017).

85525759 is a wasteful number, since it uses less digits than its factorization.

85525759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375.

The product of its digits is 630000, while the sum is 46.

The square root of 85525759 is about 9248.0137867544. The cubic root of 85525759 is about 440.5876428534.

The spelling of 85525759 in words is "eighty-five million, five hundred twenty-five thousand, seven hundred fifty-nine".