540225831 has 4 divisors (see below), whose sum is σ = 720301112. Its totient is φ = 360150552.

The previous prime is 540225827. The next prime is 540225857. The reversal of 540225831 is 138522045.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 540225831 - 2² = 540225827 is a prime.

It is a super-2 number, since 2×540225831² = 583687896959281122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540225731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90037636 + ... + 90037641.

It is an arithmetic number, because the mean of its divisors is an integer number (180075278).

Almost surely, 2^540225831 is an apocalyptic number.

540225831 is a deficient number, since it is larger than the sum of its proper divisors (180075281).

540225831 is a wasteful number, since it uses less digits than its factorization.

540225831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180075280.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 540225831 is about 23242.7586787799. The cubic root of 540225831 is about 814.4387876102.

Adding to 540225831 its reverse (138522045), we get a palindrome (678747876).

The spelling of 540225831 in words is "five hundred forty million, two hundred twenty-five thousand, eight hundred thirty-one".