525400139205 has 32 divisors (see below), whose sum is σ = 935663625600. Its totient is φ = 279727727616.

The previous prime is 525400139177. The next prime is 525400139207. The reversal of 525400139205 is 502931004525.

It is a happy number.

525400139205 is a `hidden beast` number, since 525 + 40 + 0 + 1 + 3 + 92 + 0 + 5 = 666.

It is not a de Polignac number, because 525400139205 - 2¹⁰ = 525400138181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 525400139205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525400139207) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3294595 + ... + 3450384.

It is an arithmetic number, because the mean of its divisors is an integer number (29239488300).

Almost surely, 2^525400139205 is an apocalyptic number.

It is an amenable number.

525400139205 is a deficient number, since it is larger than the sum of its proper divisors (410263486395).

525400139205 is a wasteful number, since it uses less digits than its factorization.

525400139205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6745570 (or 6745564 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 525400139205 in words is "five hundred twenty-five billion, four hundred million, one hundred thirty-nine thousand, two hundred five".