525400139202 has 64 divisors (see below), whose sum is σ = 1088277050880. Its totient is φ = 169008021504.

The previous prime is 525400139177. The next prime is 525400139207. The reversal of 525400139202 is 202931004525.

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 in 31 ways as a sum of consecutive naturals, for example, 6107424 + ... + 6192852.

It is an arithmetic number, because the mean of its divisors is an integer number (17004328920).

Almost surely, 2^525400139202 is an apocalyptic number.

525400139202 is an abundant number, since it is smaller than the sum of its proper divisors (562876911678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

525400139202 is a wasteful number, since it uses less digits than its factorization.

525400139202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85787.

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 525400139202 in words is "five hundred twenty-five billion, four hundred million, one hundred thirty-nine thousand, two hundred two".