5540240771251 has 4 divisors (see below), whose sum is σ = 5549842575592. Its totient is φ = 5530638966912.

The previous prime is 5540240771173. The next prime is 5540240771267. The reversal of 5540240771251 is 1521770420455.

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 5540240771251 - 2²⁷ = 5540106553523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5540240771198 and 5540240771207.

It is not an unprimeable number, because it can be changed into a prime (5540240771281) 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, 4800901305 + ... + 4800902458.

It is an arithmetic number, because the mean of its divisors is an integer number (1387460643898).

Almost surely, 2^{5540240771251} is an apocalyptic number.

5540240771251 is a deficient number, since it is larger than the sum of its proper divisors (9601804341).

5540240771251 is an equidigital number, since it uses as much as digits as its factorization.

5540240771251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9601804340.

The product of its (nonzero) digits is 392000, while the sum is 43.

The spelling of 5540240771251 in words is "five trillion, five hundred forty billion, two hundred forty million, seven hundred seventy-one thousand, two hundred fifty-one".