540333225505541 has 4 divisors (see below), whose sum is σ = 581897319775212. Its totient is φ = 498769131235872.

The previous prime is 540333225505537. The next prime is 540333225505559. The reversal of 540333225505541 is 145505522333045.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 45014639397025 + 495318586108516 = 6709295^2 + 22255754^2 .

It is a cyclic number.

It is not a de Polignac number, because 540333225505541 - 2² = 540333225505537 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540333225505841) 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, 20782047134816 + ... + 20782047134841.

It is an arithmetic number, because the mean of its divisors is an integer number (145474329943803).

Almost surely, 2^{540333225505541} is an apocalyptic number.

It is an amenable number.

540333225505541 is a deficient number, since it is larger than the sum of its proper divisors (41564094269671).

540333225505541 is a wasteful number, since it uses less digits than its factorization.

540333225505541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41564094269670.

The product of its (nonzero) digits is 5400000, while the sum is 47.

Adding to 540333225505541 its reverse (145505522333045), we get a palindrome (685838747838586).

The spelling of 540333225505541 in words is "five hundred forty trillion, three hundred thirty-three billion, two hundred twenty-five million, five hundred five thousand, five hundred forty-one".