540544120405025 has 48 divisors (see below), whose sum is σ = 737006189918208. Its totient is φ = 390006441216000.

The previous prime is 540544120404997. The next prime is 540544120405057. The reversal of 540544120405025 is 520504021445045.

It is not a de Polignac number, because 540544120405025 - 2¹² = 540544120400929 is a prime.

It is a super-2 number, since 2×540544120405025² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 660127355 + ... + 660945695.

It is an arithmetic number, because the mean of its divisors is an integer number (15354295623296).

Almost surely, 2^{540544120405025} is an apocalyptic number.

540544120405025 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

540544120405025 is a deficient number, since it is larger than the sum of its proper divisors (196462069513183).

540544120405025 is a wasteful number, since it uses less digits than its factorization.

540544120405025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837402 (or 837397 counting only the distinct ones).

The product of its (nonzero) digits is 640000, while the sum is 41.

The spelling of 540544120405025 in words is "five hundred forty trillion, five hundred forty-four billion, one hundred twenty million, four hundred five thousand, twenty-five".