52736021581242 has 32 divisors (see below), whose sum is σ = 105628697754624. Its totient is φ = 17552576487600.

The previous prime is 52736021581241. The next prime is 52736021581267. The reversal of 52736021581242 is 24218512063725.

It is a junction number, because it is equal to n+sod(n) for n = 52736021581191 and 52736021581200.

It is not an unprimeable number, because it can be changed into a prime (52736021581241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16553517 + ... + 19480527.

It is an arithmetic number, because the mean of its divisors is an integer number (3300896804832).

Almost surely, 2^{52736021581242} is an apocalyptic number.

52736021581242 is an abundant number, since it is smaller than the sum of its proper divisors (52892676173382).

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

52736021581242 is a wasteful number, since it uses less digits than its factorization.

52736021581242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2931474.

The product of its (nonzero) digits is 1612800, while the sum is 48.

The spelling of 52736021581242 in words is "fifty-two trillion, seven hundred thirty-six billion, twenty-one million, five hundred eighty-one thousand, two hundred forty-two".