525400139207 has 2 divisors, whose sum is σ = 525400139208. Its totient is φ = 525400139206.

The previous prime is 525400139177. The next prime is 525400139287. The reversal of 525400139207 is 702931004525.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 525400139207 - 2¹² = 525400135111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (525400139287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262700069603 + 262700069604.

It is an arithmetic number, because the mean of its divisors is an integer number (262700069604).

Almost surely, 2^525400139207 is an apocalyptic number.

525400139207 is a deficient number, since it is larger than the sum of its proper divisors (1).

525400139207 is an equidigital number, since it uses as much as digits as its factorization.

525400139207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 38.

The spelling of 525400139207 in words is "five hundred twenty-five billion, four hundred million, one hundred thirty-nine thousand, two hundred seven".