532005721 has 24 divisors (see below), whose sum is σ = 595667520. Its totient is φ = 472295232.

The previous prime is 532005713. The next prime is 532005743. The reversal of 532005721 is 127500235.

It is not a de Polignac number, because 532005721 - 2³ = 532005713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (532005751) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2972010 + ... + 2972188.

It is an arithmetic number, because the mean of its divisors is an integer number (24819480).

Almost surely, 2^532005721 is an apocalyptic number.

It is an amenable number.

532005721 is a deficient number, since it is larger than the sum of its proper divisors (63661799).

532005721 is a wasteful number, since it uses less digits than its factorization.

532005721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433 (or 396 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 532005721 is about 23065.2492074116. The cubic root of 532005721 is about 810.2868064267.

Adding to 532005721 its reverse (127500235), we get a palindrome (659505956).

The spelling of 532005721 in words is "five hundred thirty-two million, five thousand, seven hundred twenty-one".