525291047 has 4 divisors (see below), whose sum is σ = 525743880. Its totient is φ = 524838216.

The previous prime is 525291037. The next prime is 525291059. The reversal of 525291047 is 740192525.

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 525291047 - 2⁴ = 525291031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 525290998 and 525291016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525291037) 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, 224672 + ... + 226997.

It is an arithmetic number, because the mean of its divisors is an integer number (131435970).

Almost surely, 2^525291047 is an apocalyptic number.

525291047 is a deficient number, since it is larger than the sum of its proper divisors (452833).

525291047 is a wasteful number, since it uses less digits than its factorization.

525291047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452832.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 525291047 is about 22919.2287610207. The cubic root of 525291047 is about 806.8633696214.

The spelling of 525291047 in words is "five hundred twenty-five million, two hundred ninety-one thousand, forty-seven".