5251765540 has 24 divisors (see below), whose sum is σ = 12604237632. Its totient is φ = 1800605280.

The previous prime is 5251765531. The next prime is 5251765543. The reversal of 5251765540 is 455671525.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 5251765493 and 5251765502.

It is not an unprimeable number, because it can be changed into a prime (5251765543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18756166 + ... + 18756445.

It is an arithmetic number, because the mean of its divisors is an integer number (525176568).

Almost surely, 2^5251765540 is an apocalyptic number.

It is an amenable number.

5251765540 is an abundant number, since it is smaller than the sum of its proper divisors (7352472092).

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

5251765540 is a wasteful number, since it uses less digits than its factorization.

5251765540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37512627 (or 37512625 counting only the distinct ones).

The product of its (nonzero) digits is 210000, while the sum is 40.

The square root of 5251765540 is about 72469.0660902981. The cubic root of 5251765540 is about 1738.2081280388.

The spelling of 5251765540 in words is "five billion, two hundred fifty-one million, seven hundred sixty-five thousand, five hundred forty".