2572111109 has 2 divisors, whose sum is σ = 2572111110. Its totient is φ = 2572111108.

The previous prime is 2572111093. The next prime is 2572111117. The reversal of 2572111109 is 9011112752.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1292618209 + 1279492900 = 35953^2 + 35770^2 .

It is a cyclic number.

It is not a de Polignac number, because 2572111109 - 2⁴ = 2572111093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2572111609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1286055554 + 1286055555.

It is an arithmetic number, because the mean of its divisors is an integer number (1286055555).

Almost surely, 2^2572111109 is an apocalyptic number.

It is an amenable number.

2572111109 is a deficient number, since it is larger than the sum of its proper divisors (1).

2572111109 is an equidigital number, since it uses as much as digits as its factorization.

2572111109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 29.

The square root of 2572111109 is about 50715.9847484006. The cubic root of 2572111109 is about 1370.1346252701.

The spelling of 2572111109 in words is "two billion, five hundred seventy-two million, one hundred eleven thousand, one hundred nine".