2557098 has 12 divisors (see below), whose sum is σ = 5540418. Its totient is φ = 852360.

The previous prime is 2557067. The next prime is 2557099. The reversal of 2557098 is 8907552.

It can be written as a sum of positive squares in only one way, i.e., 1896129 + 660969 = 1377^2 + 813^2 .

It is not an unprimeable number, because it can be changed into a prime (2557099) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 71013 + ... + 71048.

2^2557098 is an apocalyptic number.

2557098 is an abundant number, since it is smaller than the sum of its proper divisors (2983320).

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

2557098 is a wasteful number, since it uses less digits than its factorization.

2557098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142069 (or 142066 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 2557098 is about 1599.0928678473. The cubic root of 2557098 is about 136.7463650417.

The spelling of 2557098 in words is "two million, five hundred fifty-seven thousand, ninety-eight".