525021316 has 6 divisors (see below), whose sum is σ = 918787310. Its totient is φ = 262510656.

The previous prime is 525021311. The next prime is 525021323. The reversal of 525021316 is 613120525.

It can be written as a sum of positive squares in only one way, i.e., 466560000 + 58461316 = 21600^2 + 7646^2 .

It is not an unprimeable number, because it can be changed into a prime (525021311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65627661 + ... + 65627668.

Almost surely, 2^525021316 is an apocalyptic number.

It is an amenable number.

525021316 is a deficient number, since it is larger than the sum of its proper divisors (393765994).

525021316 is a wasteful number, since it uses less digits than its factorization.

525021316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131255333 (or 131255331 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 525021316 is about 22913.3436233126. The cubic root of 525021316 is about 806.7252409105.

The spelling of 525021316 in words is "five hundred twenty-five million, twenty-one thousand, three hundred sixteen".