2540155454 has 16 divisors (see below), whose sum is σ = 3860586576. Its totient is φ = 1253376000.

The previous prime is 2540155421. The next prime is 2540155459. The reversal of 2540155454 is 4545510452.

It is a super-2 number, since 2×2540155454² = 12904779460971892232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2540155459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41534 + ... + 82494.

It is an arithmetic number, because the mean of its divisors is an integer number (241286661).

Almost surely, 2^2540155454 is an apocalyptic number.

2540155454 is a deficient number, since it is larger than the sum of its proper divisors (1320431122).

2540155454 is a wasteful number, since it uses less digits than its factorization.

2540155454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41371.

The product of its (nonzero) digits is 80000, while the sum is 35.

The square root of 2540155454 is about 50399.9549007735. The cubic root of 2540155454 is about 1364.4368242125.

The spelling of 2540155454 in words is "two billion, five hundred forty million, one hundred fifty-five thousand, four hundred fifty-four".