1540543025 has 12 divisors (see below), whose sum is σ = 2183169792. Its totient is φ = 1056372240.

The previous prime is 1540543007. The next prime is 1540543027. The reversal of 1540543025 is 5203450451.

It is not a de Polignac number, because 1540543025 - 2¹⁴ = 1540526641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1540543027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4401377 + ... + 4401726.

It is an arithmetic number, because the mean of its divisors is an integer number (181930816).

Almost surely, 2^1540543025 is an apocalyptic number.

It is an amenable number.

1540543025 is a deficient number, since it is larger than the sum of its proper divisors (642626767).

1540543025 is an equidigital number, since it uses as much as digits as its factorization.

1540543025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8803120 (or 8803115 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 1540543025 is about 39249.7519100440. The cubic root of 1540543025 is about 1154.9360671245.

Adding to 1540543025 its reverse (5203450451), we get a palindrome (6743993476).

The spelling of 1540543025 in words is "one billion, five hundred forty million, five hundred forty-three thousand, twenty-five".