523856745 has 48 divisors (see below), whose sum is σ = 939050112. Its totient is φ = 269982720.

The previous prime is 523856743. The next prime is 523856761. The reversal of 523856745 is 547658325.

523856745 is a `hidden beast` number, since 52 + 38 + 567 + 4 + 5 = 666.

It is not a de Polignac number, because 523856745 - 2¹ = 523856743 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 523856745.

It is not an unprimeable number, because it can be changed into a prime (523856743) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 186300 + ... + 189090.

It is an arithmetic number, because the mean of its divisors is an integer number (19563544).

Almost surely, 2^523856745 is an apocalyptic number.

It is an amenable number.

523856745 is a deficient number, since it is larger than the sum of its proper divisors (415193367).

523856745 is a wasteful number, since it uses less digits than its factorization.

523856745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2942 (or 2939 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 45.

The square root of 523856745 is about 22887.9170087625. The cubic root of 523856745 is about 806.1283227230.

The spelling of 523856745 in words is "five hundred twenty-three million, eight hundred fifty-six thousand, seven hundred forty-five".