2557374450 has 96 divisors (see below), whose sum is σ = 6566579712. Its totient is φ = 657984000.

The previous prime is 2557374437. The next prime is 2557374487. The reversal of 2557374450 is 544737552.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 2143054 + ... + 2144246.

It is an arithmetic number, because the mean of its divisors is an integer number (68401872).

Almost surely, 2^2557374450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2557374450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3283289856).

2557374450 is an abundant number, since it is smaller than the sum of its proper divisors (4009205262).

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

2557374450 is a wasteful number, since it uses less digits than its factorization.

2557374450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1700 (or 1695 counting only the distinct ones).

The product of its (nonzero) digits is 588000, while the sum is 42.

The square root of 2557374450 is about 50570.4899125963. The cubic root of 2557374450 is about 1367.5129278534.

The spelling of 2557374450 in words is "two billion, five hundred fifty-seven million, three hundred seventy-four thousand, four hundred fifty".