2557798503 has 32 divisors (see below), whose sum is σ = 3796423680. Its totient is φ = 1521901440.

The previous prime is 2557798459. The next prime is 2557798531. The reversal of 2557798503 is 3058977552.

It is a happy number.

2557798503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2557798503 - 2¹³ = 2557790311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2557798543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131250 + ... + 149472.

It is an arithmetic number, because the mean of its divisors is an integer number (118638240).

Almost surely, 2^2557798503 is an apocalyptic number.

2557798503 is a deficient number, since it is larger than the sum of its proper divisors (1238625177).

2557798503 is a wasteful number, since it uses less digits than its factorization.

2557798503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18359.

The product of its (nonzero) digits is 2646000, while the sum is 51.

The square root of 2557798503 is about 50574.6824310346. The cubic root of 2557798503 is about 1367.5885087434.

The spelling of 2557798503 in words is "two billion, five hundred fifty-seven million, seven hundred ninety-eight thousand, five hundred three".