2557274 has 4 divisors (see below), whose sum is σ = 3835914. Its totient is φ = 1278636.

The previous prime is 2557273. The next prime is 2557277. The reversal of 2557274 is 4727552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2271049 + 286225 = 1507^2 + 535^2 .

It is a super-2 number, since 2×2557274² = 13079300622152, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2557274.

It is not an unprimeable number, because it can be changed into a prime (2557273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 639317 + ... + 639320.

2^2557274 is an apocalyptic number.

2557274 is a deficient number, since it is larger than the sum of its proper divisors (1278640).

2557274 is a wasteful number, since it uses less digits than its factorization.

2557274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1278639.

The product of its digits is 19600, while the sum is 32.

The square root of 2557274 is about 1599.1478981007. The cubic root of 2557274 is about 136.7495022970.

The spelling of 2557274 in words is "two million, five hundred fifty-seven thousand, two hundred seventy-four".