523049856 has 128 divisors (see below), whose sum is σ = 1639311360. Its totient is φ = 144599040.

The previous prime is 523049837. The next prime is 523049867. The reversal of 523049856 is 658940325.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80190 + ... + 86466.

It is an arithmetic number, because the mean of its divisors is an integer number (12807120).

Almost surely, 2^523049856 is an apocalyptic number.

523049856 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 523049856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (819655680).

523049856 is an abundant number, since it is smaller than the sum of its proper divisors (1116261504).

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

523049856 is a wasteful number, since it uses less digits than its factorization.

523049856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6332 (or 6320 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The square root of 523049856 is about 22870.2832514160. The cubic root of 523049856 is about 805.7142207564.

The spelling of 523049856 in words is "five hundred twenty-three million, forty-nine thousand, eight hundred fifty-six".