2543402057 has 8 divisors (see below), whose sum is σ = 2921807616. Its totient is φ = 2168762112.

The previous prime is 2543402053. The next prime is 2543402087. The reversal of 2543402057 is 7502043452.

2543402057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2543402057 - 2² = 2543402053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2543402053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 939953 + ... + 942654.

It is an arithmetic number, because the mean of its divisors is an integer number (365225952).

Almost surely, 2^2543402057 is an apocalyptic number.

It is an amenable number.

2543402057 is a deficient number, since it is larger than the sum of its proper divisors (378405559).

2543402057 is a wasteful number, since it uses less digits than its factorization.

2543402057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1882807.

The product of its (nonzero) digits is 33600, while the sum is 32.

The square root of 2543402057 is about 50432.1530077787. The cubic root of 2543402057 is about 1365.0178777283.

The spelling of 2543402057 in words is "two billion, five hundred forty-three million, four hundred two thousand, fifty-seven".