523653121 has 8 divisors (see below), whose sum is σ = 546652800. Its totient is φ = 500672832.

The previous prime is 523653101. The next prime is 523653149. The reversal of 523653121 is 121356325.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 523653121 - 2⁵ = 523653089 is a prime.

It is a super-2 number, since 2×523653121² = 548425182266081282, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 523653121.

It is not an unprimeable number, because it can be changed into a prime (523653101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90316 + ... + 95938.

It is an arithmetic number, because the mean of its divisors is an integer number (68331600).

Almost surely, 2^523653121 is an apocalyptic number.

It is an amenable number.

523653121 is a deficient number, since it is larger than the sum of its proper divisors (22999679).

523653121 is a wasteful number, since it uses less digits than its factorization.

523653121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9695.

The product of its digits is 5400, while the sum is 28.

The square root of 523653121 is about 22883.4682904493. The cubic root of 523653121 is about 806.0238613743.

The spelling of 523653121 in words is "five hundred twenty-three million, six hundred fifty-three thousand, one hundred twenty-one".