5721500 has 24 divisors (see below), whose sum is σ = 12496848. Its totient is φ = 2288400.

The previous prime is 5721493. The next prime is 5721517. The reversal of 5721500 is 51275.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 5222 + ... + 6221.

It is an arithmetic number, because the mean of its divisors is an integer number (520702).

Almost surely, 2^5721500 is an apocalyptic number.

5721500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

5721500 is an abundant number, since it is smaller than the sum of its proper divisors (6775348).

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

5721500 is a wasteful number, since it uses less digits than its factorization.

5721500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11462 (or 11450 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 20.

The square root of 5721500 is about 2391.9657188179. The cubic root of 5721500 is about 178.8559122602.

Adding to 5721500 its reverse (51275), we get a palindrome (5772775).

The spelling of 5721500 in words is "five million, seven hundred twenty-one thousand, five hundred".