2562645993 has 16 divisors (see below), whose sum is σ = 3571430400. Its totient is φ = 1631396624.

The previous prime is 2562645991. The next prime is 2562645997. The reversal of 2562645993 is 3995462652.

It is not a de Polignac number, because 2562645993 - 2¹ = 2562645991 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2562645991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10330 + ... + 72332.

It is an arithmetic number, because the mean of its divisors is an integer number (223214400).

Almost surely, 2^2562645993 is an apocalyptic number.

2562645993 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2562645993 is a deficient number, since it is larger than the sum of its proper divisors (1008784407).

2562645993 is a wasteful number, since it uses less digits than its factorization.

2562645993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62628.

The product of its digits is 3499200, while the sum is 51.

The square root of 2562645993 is about 50622.5838238231. The cubic root of 2562645993 is about 1368.4519059271.

The spelling of 2562645993 in words is "two billion, five hundred sixty-two million, six hundred forty-five thousand, nine hundred ninety-three".