2563387723 has 4 divisors (see below), whose sum is σ = 2760571408. Its totient is φ = 2366204040.

The previous prime is 2563387693. The next prime is 2563387741. The reversal of 2563387723 is 3277833652.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2563387723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2563387753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98591823 + ... + 98591848.

It is an arithmetic number, because the mean of its divisors is an integer number (690142852).

Almost surely, 2^2563387723 is an apocalyptic number.

2563387723 is a deficient number, since it is larger than the sum of its proper divisors (197183685).

2563387723 is a wasteful number, since it uses less digits than its factorization.

2563387723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197183684.

The product of its digits is 1270080, while the sum is 46.

The square root of 2563387723 is about 50629.9093718328. The cubic root of 2563387723 is about 1368.5839210294.

It can be divided in two parts, 2563 and 387723, that added together give a triangular number (390286 = T₈₈₃).

The spelling of 2563387723 in words is "two billion, five hundred sixty-three million, three hundred eighty-seven thousand, seven hundred twenty-three".