524747087221 has 12 divisors (see below), whose sum is σ = 623407745088. Its totient is φ = 440213359992.

The previous prime is 524747087213. The next prime is 524747087251. The reversal of 524747087221 is 122780747425.

It is not a de Polignac number, because 524747087221 - 2³ = 524747087213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (524747087251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 113924551 + ... + 113929156.

It is an arithmetic number, because the mean of its divisors is an integer number (51950645424).

Almost surely, 2^524747087221 is an apocalyptic number.

It is an amenable number.

524747087221 is a deficient number, since it is larger than the sum of its proper divisors (98660657867).

524747087221 is a wasteful number, since it uses less digits than its factorization.

524747087221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227853768 (or 227853761 counting only the distinct ones).

The product of its (nonzero) digits is 1756160, while the sum is 49.

The spelling of 524747087221 in words is "five hundred twenty-four billion, seven hundred forty-seven million, eighty-seven thousand, two hundred twenty-one".