540378555 has 16 divisors (see below), whose sum is σ = 875024640. Its totient is φ = 284728928.

The previous prime is 540378551. The next prime is 540378593. The reversal of 540378555 is 555873045.

It is a cyclic number.

It is not a de Polignac number, because 540378555 - 2² = 540378551 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (540378551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215775 + ... + 218264.

It is an arithmetic number, because the mean of its divisors is an integer number (54689040).

Almost surely, 2^540378555 is an apocalyptic number.

540378555 is a deficient number, since it is larger than the sum of its proper divisors (334646085).

540378555 is a wasteful number, since it uses less digits than its factorization.

540378555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434130.

The product of its (nonzero) digits is 420000, while the sum is 42.

The square root of 540378555 is about 23246.0438569663. The cubic root of 540378555 is about 814.5155287450.

The spelling of 540378555 in words is "five hundred forty million, three hundred seventy-eight thousand, five hundred fifty-five".