523325140 has 24 divisors (see below), whose sum is σ = 1183520520. Its totient is φ = 193227648.

The previous prime is 523325129. The next prime is 523325149. The reversal of 523325140 is 41523325.

It can be written as a sum of positive squares in 4 ways, for example, as 107246736 + 416078404 = 10356^2 + 20398^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523325149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1006135 + ... + 1006654.

It is an arithmetic number, because the mean of its divisors is an integer number (49313355).

Almost surely, 2^523325140 is an apocalyptic number.

It is an amenable number.

523325140 is an abundant number, since it is smaller than the sum of its proper divisors (660195380).

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

523325140 is a wasteful number, since it uses less digits than its factorization.

523325140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012811 (or 2012809 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 523325140 is about 22876.3008373294. The cubic root of 523325140 is about 805.8555465661.

Adding to 523325140 its reverse (41523325), we get a palindrome (564848465).

The spelling of 523325140 in words is "five hundred twenty-three million, three hundred twenty-five thousand, one hundred forty".