521525225112023 has 16 divisors (see below), whose sum is σ = 584642095213344. Its totient is φ = 461040357980160.

The previous prime is 521525225111993. The next prime is 521525225112029. The reversal of 521525225112023 is 320211522525125.

It is not a de Polignac number, because 521525225112023 - 2¹² = 521525225107927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521525225112029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 359825090 + ... + 361271567.

It is an arithmetic number, because the mean of its divisors is an integer number (36540130950834).

Almost surely, 2^{521525225112023} is an apocalyptic number.

521525225112023 is a deficient number, since it is larger than the sum of its proper divisors (63116870101321).

521525225112023 is a wasteful number, since it uses less digits than its factorization.

521525225112023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721098482.

The product of its (nonzero) digits is 120000, while the sum is 38.

Adding to 521525225112023 its reverse (320211522525125), we get a palindrome (841736747637148).

The spelling of 521525225112023 in words is "five hundred twenty-one trillion, five hundred twenty-five billion, two hundred twenty-five million, one hundred twelve thousand, twenty-three".