2561362 has 8 divisors (see below), whose sum is σ = 3945996. Its totient is φ = 1246032.

The previous prime is 2561341. The next prime is 2561387. The reversal of 2561362 is 2631652.

It can be written as a sum of positive squares in 2 ways, for example, as 2493241 + 68121 = 1579^2 + 261^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17233 + ... + 17380.

2^2561362 is an apocalyptic number.

2561362 is a deficient number, since it is larger than the sum of its proper divisors (1384634).

2561362 is a wasteful number, since it uses less digits than its factorization.

2561362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34652.

The product of its digits is 2160, while the sum is 25.

The square root of 2561362 is about 1600.4255684036. The cubic root of 2561362 is about 136.8223317167.

The spelling of 2561362 in words is "two million, five hundred sixty-one thousand, three hundred sixty-two".