521525141 has 8 divisors (see below), whose sum is σ = 532500480. Its totient is φ = 510591952.

The previous prime is 521525111. The next prime is 521525149. The reversal of 521525141 is 141525125.

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

It is a cyclic number.

It is not a de Polignac number, because 521525141 - 2⁶ = 521525077 is a prime.

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 521525141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521525149) 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, 15116 + ... + 35658.

It is an arithmetic number, because the mean of its divisors is an integer number (66562560).

Almost surely, 2^521525141 is an apocalyptic number.

It is an amenable number.

521525141 is a deficient number, since it is larger than the sum of its proper divisors (10975339).

521525141 is a wasteful number, since it uses less digits than its factorization.

521525141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21075.

The product of its digits is 2000, while the sum is 26.

The square root of 521525141 is about 22836.9249462356. The cubic root of 521525141 is about 804.9305604751.

The spelling of 521525141 in words is "five hundred twenty-one million, five hundred twenty-five thousand, one hundred forty-one".