523140550 has 24 divisors (see below), whose sum is σ = 993748896. Its totient is φ = 204803040.

The previous prime is 523140523. The next prime is 523140571. The reversal of 523140550 is 55041325.

It is a Harshad number since it is a multiple of its sum of digits (25).

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 11 ways as a sum of consecutive naturals, for example, 108957 + ... + 113656.

It is an arithmetic number, because the mean of its divisors is an integer number (41406204).

Almost surely, 2^523140550 is an apocalyptic number.

523140550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

523140550 is a deficient number, since it is larger than the sum of its proper divisors (470608346).

523140550 is a wasteful number, since it uses less digits than its factorization.

523140550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222672 (or 222667 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 523140550 is about 22872.2659568308. The cubic root of 523140550 is about 805.7607868861.

Adding to 523140550 its reverse (55041325), we get a palindrome (578181875).

The spelling of 523140550 in words is "five hundred twenty-three million, one hundred forty thousand, five hundred fifty".