523090542 has 64 divisors (see below), whose sum is σ = 1163280384. Its totient is φ = 155796480.

The previous prime is 523090517. The next prime is 523090573. The reversal of 523090542 is 245090325.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 354867 + ... + 356337.

It is an arithmetic number, because the mean of its divisors is an integer number (18176256).

Almost surely, 2^523090542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 523090542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (581640192).

523090542 is an abundant number, since it is smaller than the sum of its proper divisors (640189842).

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

523090542 is a wasteful number, since it uses less digits than its factorization.

523090542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1633.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 523090542 is about 22871.1727290054. The cubic root of 523090542 is about 805.7351113327.

The spelling of 523090542 in words is "five hundred twenty-three million, ninety thousand, five hundred forty-two".