2540155432 has 16 divisors (see below), whose sum is σ = 4763978100. Its totient is φ = 1269761280.

The previous prime is 2540155421. The next prime is 2540155459. The reversal of 2540155432 is 2345510452.

2540155432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2431870596 + 108284836 = 49314^2 + 10406^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2540155394 and 2540155403.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3507 + ... + 71362.

Almost surely, 2^2540155432 is an apocalyptic number.

It is an amenable number.

2540155432 is a deficient number, since it is larger than the sum of its proper divisors (2223822668).

2540155432 is a wasteful number, since it uses less digits than its factorization.

2540155432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79116 (or 79112 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 2540155432 is about 50399.9546825193. The cubic root of 2540155432 is about 1364.4368202734.

Adding to 2540155432 its reverse (2345510452), we get a palindrome (4885665884).

The spelling of 2540155432 in words is "two billion, five hundred forty million, one hundred fifty-five thousand, four hundred thirty-two".