5215780 has 24 divisors (see below), whose sum is σ = 11007360. Its totient is φ = 2076000.

The previous prime is 5215751. The next prime is 5215789. The reversal of 5215780 is 875125.

It is a super-2 number, since 2×5215780² = 54408722016800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (5215789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4501 + ... + 5539.

It is an arithmetic number, because the mean of its divisors is an integer number (458640).

Almost surely, 2^5215780 is an apocalyptic number.

It is an amenable number.

5215780 is an abundant number, since it is smaller than the sum of its proper divisors (5791580).

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

5215780 is a wasteful number, since it uses less digits than its factorization.

5215780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299 (or 1297 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 5215780 is about 2283.8082231221. The cubic root of 5215780 is about 173.4228909319.

It can be divided in two parts, 5215 and 780, that added together give a palindrome (5995).

The spelling of 5215780 in words is "five million, two hundred fifteen thousand, seven hundred eighty".