525473540 has 12 divisors (see below), whose sum is σ = 1103494476. Its totient is φ = 210189408.

The previous prime is 525473539. The next prime is 525473569. The reversal of 525473540 is 45374525.

It can be written as a sum of positive squares in 2 ways, for example, as 287573764 + 237899776 = 16958^2 + 15424^2 .

It is a super-2 number, since 2×525473540² = 552244882480263200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 525473540.

It is an unprimeable number.

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, 13136819 + ... + 13136858.

It is an arithmetic number, because the mean of its divisors is an integer number (91957873).

Almost surely, 2^525473540 is an apocalyptic number.

It is an amenable number.

525473540 is an abundant number, since it is smaller than the sum of its proper divisors (578020936).

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

525473540 is a wasteful number, since it uses less digits than its factorization.

525473540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26273686 (or 26273684 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 35.

The square root of 525473540 is about 22923.2096356509. The cubic root of 525473540 is about 806.9567971090.

The spelling of 525473540 in words is "five hundred twenty-five million, four hundred seventy-three thousand, five hundred forty".