540064320425 has 18 divisors (see below), whose sum is σ = 779015229678. Its totient is φ = 370329818880.

The previous prime is 540064320409. The next prime is 540064320427. The reversal of 540064320425 is 524023460045.

It can be written as a sum of positive squares in 3 ways, for example, as 71693811049 + 468370509376 = 267757^2 + 684376^2 .

It is not a de Polignac number, because 540064320425 - 2⁴ = 540064320409 is a prime.

It is a super-2 number, since 2×540064320425² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (540064320427) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 220433192 + ... + 220435641.

It is an arithmetic number, because the mean of its divisors is an integer number (43278623871).

Almost surely, 2^540064320425 is an apocalyptic number.

It is an amenable number.

540064320425 is a deficient number, since it is larger than the sum of its proper divisors (238950909253).

540064320425 is a wasteful number, since it uses less digits than its factorization.

540064320425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440868857 (or 440868845 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 35.

The spelling of 540064320425 in words is "five hundred forty billion, sixty-four million, three hundred twenty thousand, four hundred twenty-five".