523402560 has 336 divisors, whose sum is σ = 1917167616. Its totient is φ = 135862272.

The previous prime is 523402501. The next prime is 523402577. The reversal of 523402560 is 65204325.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4121217 + ... + 4121343.

It is an arithmetic number, because the mean of its divisors is an integer number (5705856).

Almost surely, 2^523402560 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 523402560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (958583808).

523402560 is an abundant number, since it is smaller than the sum of its proper divisors (1393765056).

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

523402560 is a wasteful number, since it uses less digits than its factorization.

523402560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 523402560 is about 22877.9929189604. The cubic root of 523402560 is about 805.8952836596.

Adding to 523402560 its reverse (65204325), we get a palindrome (588606885).

The spelling of 523402560 in words is "five hundred twenty-three million, four hundred two thousand, five hundred sixty".