2501955543 has 8 divisors (see below), whose sum is σ = 3344652288. Its totient is φ = 1663614584.

The previous prime is 2501955539. The next prime is 2501955551. The reversal of 2501955543 is 3455591052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2501955543 - 2² = 2501955539 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2501955553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1087605 + ... + 1089902.

It is an arithmetic number, because the mean of its divisors is an integer number (418081536).

Almost surely, 2^2501955543 is an apocalyptic number.

2501955543 is a deficient number, since it is larger than the sum of its proper divisors (842696745).

2501955543 is a wasteful number, since it uses less digits than its factorization.

2501955543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2177893.

The product of its (nonzero) digits is 135000, while the sum is 39.

The square root of 2501955543 is about 50019.5516073465. The cubic root of 2501955543 is about 1357.5625934258.

The spelling of 2501955543 in words is "two billion, five hundred one million, nine hundred fifty-five thousand, five hundred forty-three".