540425421421501 has 64 divisors (see below), whose sum is σ = 744698795950080. Its totient is φ = 379244752128000.

The previous prime is 540425421421493. The next prime is 540425421421621. The reversal of 540425421421501 is 105124124524045.

It is not a de Polignac number, because 540425421421501 - 2³ = 540425421421493 is a prime.

It is a super-2 number, since 2×540425421421501² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540425421421801) 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 63 ways as a sum of consecutive naturals, for example, 71207905 + ... + 78430966.

It is an arithmetic number, because the mean of its divisors is an integer number (11635918686720).

Almost surely, 2^{540425421421501} is an apocalyptic number.

It is an amenable number.

540425421421501 is a deficient number, since it is larger than the sum of its proper divisors (204273374528579).

540425421421501 is a wasteful number, since it uses less digits than its factorization.

540425421421501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149639026.

The product of its (nonzero) digits is 256000, while the sum is 40.

Adding to 540425421421501 its reverse (105124124524045), we get a palindrome (645549545945546).

The spelling of 540425421421501 in words is "five hundred forty trillion, four hundred twenty-five billion, four hundred twenty-one million, four hundred twenty-one thousand, five hundred one".