525780887 has 2 divisors, whose sum is σ = 525780888. Its totient is φ = 525780886.

The previous prime is 525780809. The next prime is 525780923. The reversal of 525780887 is 788087525.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 525780887 - 2¹² = 525776791 is a prime.

It is a super-2 number, since 2×525780887² = 552891082269013538, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (525720887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262890443 + 262890444.

It is an arithmetic number, because the mean of its divisors is an integer number (262890444).

Almost surely, 2^525780887 is an apocalyptic number.

525780887 is a deficient number, since it is larger than the sum of its proper divisors (1).

525780887 is an equidigital number, since it uses as much as digits as its factorization.

525780887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1254400, while the sum is 50.

The square root of 525780887 is about 22929.9124943817. The cubic root of 525780887 is about 807.1140948561.

The spelling of 525780887 in words is "five hundred twenty-five million, seven hundred eighty thousand, eight hundred eighty-seven".