5252780268 has 18 divisors (see below), whose sum is σ = 13277861324. Its totient is φ = 1750926744.

The previous prime is 5252780249. The next prime is 5252780287. The reversal of 5252780268 is 8620872525.

5252780268 is a `hidden beast` number, since 525 + 27 + 80 + 26 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (5252780249) and next prime (5252780287).

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72955246 + ... + 72955317.

Almost surely, 2^5252780268 is an apocalyptic number.

It is an amenable number.

5252780268 is an abundant number, since it is smaller than the sum of its proper divisors (8025081056).

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

5252780268 is a wasteful number, since it uses less digits than its factorization.

5252780268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145910573 (or 145910568 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The square root of 5252780268 is about 72476.0668634826. The cubic root of 5252780268 is about 1738.3200710198.

The spelling of 5252780268 in words is "five billion, two hundred fifty-two million, seven hundred eighty thousand, two hundred sixty-eight".