5663020261 has 4 divisors (see below), whose sum is σ = 5715945792. Its totient is φ = 5610094732.

The previous prime is 5663020171. The next prime is 5663020277. The reversal of 5663020261 is 1620203665.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5663020261 - 2³¹ = 3515536613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5663026261) 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, 26462605 + ... + 26462818.

It is an arithmetic number, because the mean of its divisors is an integer number (1428986448).

Almost surely, 2^5663020261 is an apocalyptic number.

It is an amenable number.

5663020261 is a deficient number, since it is larger than the sum of its proper divisors (52925531).

5663020261 is a wasteful number, since it uses less digits than its factorization.

5663020261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52925530.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 5663020261 is about 75253.0415398607. The cubic root of 5663020261 is about 1782.4445918439. Note that the first 3 decimals are identical.

The spelling of 5663020261 in words is "five billion, six hundred sixty-three million, twenty thousand, two hundred sixty-one".