1538525052256 has 24 divisors (see below), whose sum is σ = 3029391583344. Its totient is φ = 769155761280.

The previous prime is 1538525052247. The next prime is 1538525052257. The reversal of 1538525052256 is 6522505258351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1538525052257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3101980 + ... + 3563611.

It is an arithmetic number, because the mean of its divisors is an integer number (126224649306).

Almost surely, 2^{1538525052256} is an apocalyptic number.

1538525052256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1538525052256 is a deficient number, since it is larger than the sum of its proper divisors (1490866531088).

1538525052256 is an equidigital number, since it uses as much as digits as its factorization.

1538525052256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6672814 (or 6672806 counting only the distinct ones).

The product of its (nonzero) digits is 3600000, while the sum is 49.

The spelling of 1538525052256 in words is "one trillion, five hundred thirty-eight billion, five hundred twenty-five million, fifty-two thousand, two hundred fifty-six".