526512540 has 48 divisors (see below), whose sum is σ = 1484864640. Its totient is φ = 139391040.

The previous prime is 526512517. The next prime is 526512577. The reversal of 526512540 is 45215625.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 526512498 and 526512507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23226 + ... + 39905.

It is an arithmetic number, because the mean of its divisors is an integer number (30934680).

Almost surely, 2^526512540 is an apocalyptic number.

It is an amenable number.

526512540 is an abundant number, since it is smaller than the sum of its proper divisors (958352100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

526512540 is a wasteful number, since it uses less digits than its factorization.

526512540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63282 (or 63280 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 526512540 is about 22945.8610646888. The cubic root of 526512540 is about 807.4883025396.

The spelling of 526512540 in words is "five hundred twenty-six million, five hundred twelve thousand, five hundred forty".