525400139204 has 6 divisors (see below), whose sum is σ = 919450243614. Its totient is φ = 262700069600.

The previous prime is 525400139177. The next prime is 525400139207. The reversal of 525400139204 is 402931004525.

It can be written as a sum of positive squares in only one way, i.e., 264072654400 + 261327484804 = 513880^2 + 511202^2 .

It is not an unprimeable number, because it can be changed into a prime (525400139207) 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, 65675017397 + ... + 65675017404.

It is an arithmetic number, because the mean of its divisors is an integer number (153241707269).

Almost surely, 2^525400139204 is an apocalyptic number.

It is an amenable number.

525400139204 is a deficient number, since it is larger than the sum of its proper divisors (394050104410).

525400139204 is a wasteful number, since it uses less digits than its factorization.

525400139204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131350034805 (or 131350034803 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 525400139204 in words is "five hundred twenty-five billion, four hundred million, one hundred thirty-nine thousand, two hundred four".