540409025 has 24 divisors (see below), whose sum is σ = 733911360. Its totient is φ = 392293440.

The previous prime is 540409007. The next prime is 540409027. The reversal of 540409025 is 520904045.

It is a happy number.

It is not a de Polignac number, because 540409025 - 2²⁴ = 523631809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (540409027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5084 + ... + 33266.

It is an arithmetic number, because the mean of its divisors is an integer number (30579640).

Almost surely, 2^540409025 is an apocalyptic number.

It is an amenable number.

540409025 is a deficient number, since it is larger than the sum of its proper divisors (193502335).

540409025 is a wasteful number, since it uses less digits than its factorization.

540409025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28265 (or 28260 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 540409025 is about 23246.6992280625. The cubic root of 540409025 is about 814.5308376560.

The spelling of 540409025 in words is "five hundred forty million, four hundred nine thousand, twenty-five".