525064394 has 8 divisors (see below), whose sum is σ = 799351968. Its totient is φ = 258613740.

The previous prime is 525064387. The next prime is 525064451. The reversal of 525064394 is 493460525.

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1959062 + ... + 1959329.

It is an arithmetic number, because the mean of its divisors is an integer number (99918996).

Almost surely, 2^525064394 is an apocalyptic number.

525064394 is a deficient number, since it is larger than the sum of its proper divisors (274287574).

525064394 is a wasteful number, since it uses less digits than its factorization.

525064394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3918460.

The product of its (nonzero) digits is 129600, while the sum is 38.

The square root of 525064394 is about 22914.2836239757. The cubic root of 525064394 is about 806.7473042430.

The spelling of 525064394 in words is "five hundred twenty-five million, sixty-four thousand, three hundred ninety-four".