525450366139 has 32 divisors (see below), whose sum is σ = 596437209216. Its totient is φ = 460102072320.

The previous prime is 525450366121. The next prime is 525450366167. The reversal of 525450366139 is 931663054525.

It is a cyclic number.

It is not a de Polignac number, because 525450366139 - 2⁷ = 525450366011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 525450366092 and 525450366101.

It is not an unprimeable number, because it can be changed into a prime (525450366109) 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, 84787989 + ... + 84794185.

It is an arithmetic number, because the mean of its divisors is an integer number (18638662788).

Almost surely, 2^525450366139 is an apocalyptic number.

525450366139 is a deficient number, since it is larger than the sum of its proper divisors (70986843077).

525450366139 is a wasteful number, since it uses less digits than its factorization.

525450366139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12135.

The product of its (nonzero) digits is 2916000, while the sum is 49.

The spelling of 525450366139 in words is "five hundred twenty-five billion, four hundred fifty million, three hundred sixty-six thousand, one hundred thirty-nine".