526057985 has 4 divisors (see below), whose sum is σ = 631269588. Its totient is φ = 420846384.

The previous prime is 526057963. The next prime is 526058017. The reversal of 526057985 is 589750625.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 410022001 + 116035984 = 20249^2 + 10772^2 .

It is a cyclic number.

It is not a de Polignac number, because 526057985 - 2¹² = 526053889 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52605794 + ... + 52605803.

It is an arithmetic number, because the mean of its divisors is an integer number (157817397).

Almost surely, 2^526057985 is an apocalyptic number.

It is an amenable number.

526057985 is a deficient number, since it is larger than the sum of its proper divisors (105211603).

526057985 is a wasteful number, since it uses less digits than its factorization.

526057985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105211602.

The product of its (nonzero) digits is 756000, while the sum is 47.

The square root of 526057985 is about 22935.9539805956. The cubic root of 526057985 is about 807.2558588679.

The spelling of 526057985 in words is "five hundred twenty-six million, fifty-seven thousand, nine hundred eighty-five".