5259866540 has 12 divisors (see below), whose sum is σ = 11045719776. Its totient is φ = 2103946608.

The previous prime is 5259866533. The next prime is 5259866551. The reversal of 5259866540 is 456689525.

It is a super-2 number, since 2×5259866540² = 55332392037223143200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

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, 131496644 + ... + 131496683.

It is an arithmetic number, because the mean of its divisors is an integer number (920476648).

Almost surely, 2^5259866540 is an apocalyptic number.

It is an amenable number.

5259866540 is an abundant number, since it is smaller than the sum of its proper divisors (5785853236).

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

5259866540 is a wasteful number, since it uses less digits than its factorization.

5259866540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262993336 (or 262993334 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 50.

The square root of 5259866540 is about 72524.9373663983. The cubic root of 5259866540 is about 1739.1014143000.

The spelling of 5259866540 in words is "five billion, two hundred fifty-nine million, eight hundred sixty-six thousand, five hundred forty".