2269915561 has 2 divisors, whose sum is σ = 2269915562. Its totient is φ = 2269915560.

The previous prime is 2269915547. The next prime is 2269915567. The reversal of 2269915561 is 1655199622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1736305561 + 533610000 = 41669^2 + 23100^2 .

It is a cyclic number.

It is not a de Polignac number, because 2269915561 - 2¹⁵ = 2269882793 is a prime.

It is a super-3 number, since 3×2269915561³ (a number of 29 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2269915567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1134957780 + 1134957781.

It is an arithmetic number, because the mean of its divisors is an integer number (1134957781).

Almost surely, 2^2269915561 is an apocalyptic number.

It is an amenable number.

2269915561 is a deficient number, since it is larger than the sum of its proper divisors (1).

2269915561 is an equidigital number, since it uses as much as digits as its factorization.

2269915561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 291600, while the sum is 46.

The square root of 2269915561 is about 47643.6308545014. The cubic root of 2269915561 is about 1314.2255336467.

The spelling of 2269915561 in words is "two billion, two hundred sixty-nine million, nine hundred fifteen thousand, five hundred sixty-one".