2517257442 has 16 divisors (see below), whose sum is σ = 5753731392. Its totient is φ = 719216400.

The previous prime is 2517257401. The next prime is 2517257461. The reversal of 2517257442 is 2447527152.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2517257442.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29967309 + ... + 29967392.

It is an arithmetic number, because the mean of its divisors is an integer number (359608212).

Almost surely, 2^2517257442 is an apocalyptic number.

2517257442 is an abundant number, since it is smaller than the sum of its proper divisors (3236473950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2517257442 is a wasteful number, since it uses less digits than its factorization.

2517257442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59934713.

The product of its digits is 156800, while the sum is 39.

The square root of 2517257442 is about 50172.2776242020. The cubic root of 2517257442 is about 1360.3245768702.

The spelling of 2517257442 in words is "two billion, five hundred seventeen million, two hundred fifty-seven thousand, four hundred forty-two".