2540125465 has 16 divisors (see below), whose sum is σ = 3272918400. Its totient is φ = 1885623040.

The previous prime is 2540125463. The next prime is 2540125477. The reversal of 2540125465 is 5645210452.

It is not a de Polignac number, because 2540125465 - 2¹ = 2540125463 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2540125465.

It is not an unprimeable number, because it can be changed into a prime (2540125463) 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, 204415 + ... + 216484.

It is an arithmetic number, because the mean of its divisors is an integer number (204557400).

Almost surely, 2^2540125465 is an apocalyptic number.

It is an amenable number.

2540125465 is a deficient number, since it is larger than the sum of its proper divisors (732792935).

2540125465 is a wasteful number, since it uses less digits than its factorization.

2540125465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420992.

The product of its (nonzero) digits is 48000, while the sum is 34.

The square root of 2540125465 is about 50399.6573897085. The cubic root of 2540125465 is about 1364.4314546911.

The spelling of 2540125465 in words is "two billion, five hundred forty million, one hundred twenty-five thousand, four hundred sixty-five".