525195157 has 2 divisors, whose sum is σ = 525195158. Its totient is φ = 525195156.

The previous prime is 525195137. The next prime is 525195173. The reversal of 525195157 is 751591525.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 368294481 + 156900676 = 19191^2 + 12526^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-525195157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (525195137) 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, 262597578 + 262597579.

It is an arithmetic number, because the mean of its divisors is an integer number (262597579).

Almost surely, 2^525195157 is an apocalyptic number.

It is an amenable number.

525195157 is a deficient number, since it is larger than the sum of its proper divisors (1).

525195157 is an equidigital number, since it uses as much as digits as its factorization.

525195157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 78750, while the sum is 40.

The square root of 525195157 is about 22917.1367539665. The cubic root of 525195157 is about 806.8142699605.

The spelling of 525195157 in words is "five hundred twenty-five million, one hundred ninety-five thousand, one hundred fifty-seven".