525254091 has 4 divisors (see below), whose sum is σ = 700338792. Its totient is φ = 350169392.

The previous prime is 525254089. The next prime is 525254099. The reversal of 525254091 is 190452525.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 525254091 - 2¹ = 525254089 is a prime.

It is a super-2 number, since 2×525254091² = 551783720224472562, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (525254099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87542346 + ... + 87542351.

It is an arithmetic number, because the mean of its divisors is an integer number (175084698).

Almost surely, 2^525254091 is an apocalyptic number.

525254091 is a deficient number, since it is larger than the sum of its proper divisors (175084701).

525254091 is a wasteful number, since it uses less digits than its factorization.

525254091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175084700.

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 525254091 is about 22918.4225242489. The cubic root of 525254091 is about 806.8444473229.

It can be divided in two parts, 52525 and 4091, that added together give a triangular number (56616 = T₃₃₆).

The spelling of 525254091 in words is "five hundred twenty-five million, two hundred fifty-four thousand, ninety-one".