525851074387 has 2 divisors, whose sum is σ = 525851074388. Its totient is φ = 525851074386.

The previous prime is 525851074369. The next prime is 525851074453. The reversal of 525851074387 is 783470158525.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 525851074387 - 2²³ = 525842685779 is a prime.

It is not a weakly prime, because it can be changed into another prime (525851074337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262925537193 + 262925537194.

It is an arithmetic number, because the mean of its divisors is an integer number (262925537194).

Almost surely, 2^525851074387 is an apocalyptic number.

525851074387 is a deficient number, since it is larger than the sum of its proper divisors (1).

525851074387 is an equidigital number, since it uses as much as digits as its factorization.

525851074387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9408000, while the sum is 55.

The spelling of 525851074387 in words is "five hundred twenty-five billion, eight hundred fifty-one million, seventy-four thousand, three hundred eighty-seven".