525720373 has 2 divisors, whose sum is σ = 525720374. Its totient is φ = 525720372.

The previous prime is 525720353. The next prime is 525720397. The reversal of 525720373 is 373027525.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 409576644 + 116143729 = 20238^2 + 10777^2 .

It is a cyclic number.

It is not a de Polignac number, because 525720373 - 2²⁵ = 492165941 is a prime.

It is equal to p_27637405 and since 525720373 and 27637405 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (525720313) 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, 262860186 + 262860187.

It is an arithmetic number, because the mean of its divisors is an integer number (262860187).

Almost surely, 2^525720373 is an apocalyptic number.

It is an amenable number.

525720373 is a deficient number, since it is larger than the sum of its proper divisors (1).

525720373 is an equidigital number, since it uses as much as digits as its factorization.

525720373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 44100, while the sum is 34.

The square root of 525720373 is about 22928.5929136526. The cubic root of 525720373 is about 807.0831291202.

Adding to 525720373 its reverse (373027525), we get a palindrome (898747898).

The spelling of 525720373 in words is "five hundred twenty-five million, seven hundred twenty thousand, three hundred seventy-three".