2563662 has 16 divisors (see below), whose sum is σ = 5236992. Its totient is φ = 836280.

The previous prime is 2563661. The next prime is 2563667. The reversal of 2563662 is 2663652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2563661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4264 + ... + 4827.

It is an arithmetic number, because the mean of its divisors is an integer number (327312).

2^2563662 is an apocalyptic number.

2563662 is an abundant number, since it is smaller than the sum of its proper divisors (2673330).

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

2563662 is a wasteful number, since it uses less digits than its factorization.

2563662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9143.

The product of its digits is 12960, while the sum is 30.

The square root of 2563662 is about 1601.1439660443. The cubic root of 2563662 is about 136.8632731139.

The spelling of 2563662 in words is "two million, five hundred sixty-three thousand, six hundred sixty-two".