525442047565138 has 16 divisors (see below), whose sum is σ = 859907444579424. Its totient is φ = 238811409645760.

The previous prime is 525442047565111. The next prime is 525442047565291. The reversal of 525442047565138 is 831565740244525.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1294027495 + ... + 1294433482.

It is an arithmetic number, because the mean of its divisors is an integer number (53744215286214).

Almost surely, 2^{525442047565138} is an apocalyptic number.

525442047565138 is a deficient number, since it is larger than the sum of its proper divisors (334465397014286).

525442047565138 is a wasteful number, since it uses less digits than its factorization.

525442047565138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2588470217.

The product of its (nonzero) digits is 161280000, while the sum is 61.

The spelling of 525442047565138 in words is "five hundred twenty-five trillion, four hundred forty-two billion, forty-seven million, five hundred sixty-five thousand, one hundred thirty-eight".