2561450 has 12 divisors (see below), whose sum is σ = 4764390. Its totient is φ = 1024560.

The previous prime is 2561431. The next prime is 2561491. The reversal of 2561450 is 541652.

2561450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 1456849 + 1104601 = 1207^2 + 1051^2 .

It is a super-2 number, since 2×2561450² = 13122052205000, which contains 22 as substring.

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25565 + ... + 25664.

2^2561450 is an apocalyptic number.

2561450 is a deficient number, since it is larger than the sum of its proper divisors (2202940).

2561450 is a wasteful number, since it uses less digits than its factorization.

2561450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51241 (or 51236 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 2561450 is about 1600.4530608550. The cubic root of 2561450 is about 136.8238986210.

The spelling of 2561450 in words is "two million, five hundred sixty-one thousand, four hundred fifty".