2563541651 has 8 divisors (see below), whose sum is σ = 2806690224. Its totient is φ = 2322076320.

The previous prime is 2563541597. The next prime is 2563541663. The reversal of 2563541651 is 1561453652.

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

It is a cyclic number.

It is not a de Polignac number, because 2563541651 - 2²² = 2559347347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2563541251) 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, 417620 + ... + 423713.

It is an arithmetic number, because the mean of its divisors is an integer number (350836278).

Almost surely, 2^2563541651 is an apocalyptic number.

2563541651 is a deficient number, since it is larger than the sum of its proper divisors (243148573).

2563541651 is a wasteful number, since it uses less digits than its factorization.

2563541651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841621.

The product of its digits is 108000, while the sum is 38.

The square root of 2563541651 is about 50631.4294781413. The cubic root of 2563541651 is about 1368.6113143583.

The spelling of 2563541651 in words is "two billion, five hundred sixty-three million, five hundred forty-one thousand, six hundred fifty-one".