540100052251 has 4 divisors (see below), whose sum is σ = 540126912312. Its totient is φ = 540073192192.

The previous prime is 540100052243. The next prime is 540100052273. The reversal of 540100052251 is 152250001045.

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

It is a cyclic number.

It is not a de Polignac number, because 540100052251 - 2³ = 540100052243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540100052201) 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, 13399846 + ... + 13440091.

It is an arithmetic number, because the mean of its divisors is an integer number (135031728078).

Almost surely, 2^540100052251 is an apocalyptic number.

540100052251 is a deficient number, since it is larger than the sum of its proper divisors (26860061).

540100052251 is a wasteful number, since it uses less digits than its factorization.

540100052251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26860060.

The product of its (nonzero) digits is 2000, while the sum is 25.

Adding to 540100052251 its reverse (152250001045), we get a palindrome (692350053296).

The spelling of 540100052251 in words is "five hundred forty billion, one hundred million, fifty-two thousand, two hundred fifty-one".