5540455951 has 2 divisors, whose sum is σ = 5540455952. Its totient is φ = 5540455950.

The previous prime is 5540455909. The next prime is 5540455979. The reversal of 5540455951 is 1595540455.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5540455951 - 2¹⁵ = 5540423183 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5540455898 and 5540455907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5540455351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2770227975 + 2770227976.

It is an arithmetic number, because the mean of its divisors is an integer number (2770227976).

Almost surely, 2^5540455951 is an apocalyptic number.

5540455951 is a deficient number, since it is larger than the sum of its proper divisors (1).

5540455951 is an equidigital number, since it uses as much as digits as its factorization.

5540455951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 450000, while the sum is 43.

The square root of 5540455951 is about 74434.2391040575. The cubic root of 5540455951 is about 1769.4915869836.

The spelling of 5540455951 in words is "five billion, five hundred forty million, four hundred fifty-five thousand, nine hundred fifty-one".