525378157 has 2 divisors, whose sum is σ = 525378158. Its totient is φ = 525378156.

The previous prime is 525378143. The next prime is 525378163. The reversal of 525378157 is 751873525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 352350441 + 173027716 = 18771^2 + 13154^2 .

It is a cyclic number.

It is not a de Polignac number, because 525378157 - 2¹⁵ = 525345389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (525378127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262689078 + 262689079.

It is an arithmetic number, because the mean of its divisors is an integer number (262689079).

Almost surely, 2^525378157 is an apocalyptic number.

It is an amenable number.

525378157 is a deficient number, since it is larger than the sum of its proper divisors (1).

525378157 is an equidigital number, since it uses as much as digits as its factorization.

525378157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 294000, while the sum is 43.

The square root of 525378157 is about 22921.1290515978. The cubic root of 525378157 is about 806.9079683784.

The spelling of 525378157 in words is "five hundred twenty-five million, three hundred seventy-eight thousand, one hundred fifty-seven".