540250402032251 has 4 divisors (see below), whose sum is σ = 557677834355904. Its totient is φ = 522822969708600.

The previous prime is 540250402032223. The next prime is 540250402032307. The reversal of 540250402032251 is 152230204052045.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-540250402032251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540250402032221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8713716161780 + ... + 8713716161841.

It is an arithmetic number, because the mean of its divisors is an integer number (139419458588976).

Almost surely, 2^{540250402032251} is an apocalyptic number.

540250402032251 is a deficient number, since it is larger than the sum of its proper divisors (17427432323653).

540250402032251 is a wasteful number, since it uses less digits than its factorization.

540250402032251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17427432323652.

The product of its (nonzero) digits is 96000, while the sum is 35.

Adding to 540250402032251 its reverse (152230204052045), we get a palindrome (692480606084296).

The spelling of 540250402032251 in words is "five hundred forty trillion, two hundred fifty billion, four hundred two million, thirty-two thousand, two hundred fifty-one".