521283488 has 48 divisors (see below), whose sum is σ = 1128919680. Its totient is φ = 236927680.

The previous prime is 521283479. The next prime is 521283509. The reversal of 521283488 is 884382125.

It is a super-2 number, since 2×521283488² = 543472949722892288, which contains 22 as substring.

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, 36473 + ... + 48711.

It is an arithmetic number, because the mean of its divisors is an integer number (23519160).

Almost surely, 2^521283488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 521283488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (564459840).

521283488 is an abundant number, since it is smaller than the sum of its proper divisors (607636192).

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

521283488 is a wasteful number, since it uses less digits than its factorization.

521283488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12282 (or 12252 counting only the distinct ones).

The product of its digits is 122880, while the sum is 41.

The square root of 521283488 is about 22831.6334939049. The cubic root of 521283488 is about 804.8062175173.

The spelling of 521283488 in words is "five hundred twenty-one million, two hundred eighty-three thousand, four hundred eighty-eight".