525347894 has 4 divisors (see below), whose sum is σ = 788021844. Its totient is φ = 262673946.

The previous prime is 525347887. The next prime is 525347897. The reversal of 525347894 is 498743525.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525347897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131336972 + ... + 131336975.

It is an arithmetic number, because the mean of its divisors is an integer number (197005461).

Almost surely, 2^525347894 is an apocalyptic number.

525347894 is a deficient number, since it is larger than the sum of its proper divisors (262673950).

525347894 is a wasteful number, since it uses less digits than its factorization.

525347894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262673949.

The product of its digits is 1209600, while the sum is 47.

The square root of 525347894 is about 22920.4688870014. The cubic root of 525347894 is about 806.8924748243.

The spelling of 525347894 in words is "five hundred twenty-five million, three hundred forty-seven thousand, eight hundred ninety-four".