523542144 has 64 divisors (see below), whose sum is σ = 1406376000. Its totient is φ = 172541952.

The previous prime is 523542113. The next prime is 523542163. The reversal of 523542144 is 441245325.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26517 + ... + 41835.

It is an arithmetic number, because the mean of its divisors is an integer number (21974625).

Almost surely, 2^523542144 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 523542144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (703188000).

523542144 is an abundant number, since it is smaller than the sum of its proper divisors (882833856).

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

523542144 is a wasteful number, since it uses less digits than its factorization.

523542144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15425 (or 15413 counting only the distinct ones).

The product of its digits is 19200, while the sum is 30.

The square root of 523542144 is about 22881.0433328553. The cubic root of 523542144 is about 805.9669175526.

Adding to 523542144 its reverse (441245325), we get a palindrome (964787469).

The spelling of 523542144 in words is "five hundred twenty-three million, five hundred forty-two thousand, one hundred forty-four".