524721489 has 16 divisors (see below), whose sum is σ = 720859392. Its totient is φ = 339331328.

The previous prime is 524721481. The next prime is 524721493. The reversal of 524721489 is 984127425.

It is a cyclic number.

It is not a de Polignac number, because 524721489 - 2³ = 524721481 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 524721489.

It is not an unprimeable number, because it can be changed into a prime (524721481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 534 + ... + 32399.

It is an arithmetic number, because the mean of its divisors is an integer number (45053712).

Almost surely, 2^524721489 is an apocalyptic number.

It is an amenable number.

524721489 is a deficient number, since it is larger than the sum of its proper divisors (196137903).

524721489 is a wasteful number, since it uses less digits than its factorization.

524721489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33096.

The product of its digits is 161280, while the sum is 42.

The square root of 524721489 is about 22906.8000602441. The cubic root of 524721489 is about 806.5716445646.

The spelling of 524721489 in words is "five hundred twenty-four million, seven hundred twenty-one thousand, four hundred eighty-nine".