523505054 has 4 divisors (see below), whose sum is σ = 785257584. Its totient is φ = 261752526.

The previous prime is 523505051. The next prime is 523505069. The reversal of 523505054 is 450505325.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523505051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130876262 + ... + 130876265.

It is an arithmetic number, because the mean of its divisors is an integer number (196314396).

Almost surely, 2^523505054 is an apocalyptic number.

523505054 is a deficient number, since it is larger than the sum of its proper divisors (261752530).

523505054 is a wasteful number, since it uses less digits than its factorization.

523505054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261752529.

The product of its (nonzero) digits is 15000, while the sum is 29.

The square root of 523505054 is about 22880.2328222420. The cubic root of 523505054 is about 805.9478843705.

The spelling of 523505054 in words is "five hundred twenty-three million, five hundred five thousand, fifty-four".