525520651 has 2 divisors, whose sum is σ = 525520652. Its totient is φ = 525520650.

The previous prime is 525520621. The next prime is 525520661. The reversal of 525520651 is 156025525.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 525520651 - 2¹³ = 525512459 is a prime.

It is not a weakly prime, because it can be changed into another prime (525520621) by changing a digit.

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 as a sum of consecutive naturals, namely, 262760325 + 262760326.

It is an arithmetic number, because the mean of its divisors is an integer number (262760326).

Almost surely, 2^525520651 is an apocalyptic number.

525520651 is a deficient number, since it is larger than the sum of its proper divisors (1).

525520651 is an equidigital number, since it uses as much as digits as its factorization.

525520651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 525520651 is about 22924.2371955972. The cubic root of 525520651 is about 806.9809121232.

The spelling of 525520651 in words is "five hundred twenty-five million, five hundred twenty thousand, six hundred fifty-one".