525189121 has 8 divisors (see below), whose sum is σ = 530712000. Its totient is φ = 519691440.

The previous prime is 525189103. The next prime is 525189157. The reversal of 525189121 is 121981525.

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 525189121 - 2¹⁵ = 525156353 is a prime.

It is a super-2 number, since 2×525189121² = 551647225633505282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (525181121) 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, 37155 + ... + 49303.

It is an arithmetic number, because the mean of its divisors is an integer number (66339000).

Almost surely, 2^525189121 is an apocalyptic number.

It is an amenable number.

525189121 is a deficient number, since it is larger than the sum of its proper divisors (5522879).

525189121 is a wasteful number, since it uses less digits than its factorization.

525189121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12599.

The product of its digits is 7200, while the sum is 34.

The square root of 525189121 is about 22917.0050617440. The cubic root of 525189121 is about 806.8111790779.

The spelling of 525189121 in words is "five hundred twenty-five million, one hundred eighty-nine thousand, one hundred twenty-one".