2272375621 has 2 divisors, whose sum is σ = 2272375622. Its totient is φ = 2272375620.

The previous prime is 2272375537. The next prime is 2272375639. The reversal of 2272375621 is 1265732722.

2272375621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2218881025 + 53494596 = 47105^2 + 7314^2 .

It is a cyclic number.

It is not a de Polignac number, because 2272375621 - 2¹³ = 2272367429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2272375691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1136187810 + 1136187811.

It is an arithmetic number, because the mean of its divisors is an integer number (1136187811).

Almost surely, 2^2272375621 is an apocalyptic number.

It is an amenable number.

2272375621 is a deficient number, since it is larger than the sum of its proper divisors (1).

2272375621 is an equidigital number, since it uses as much as digits as its factorization.

2272375621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70560, while the sum is 37.

The square root of 2272375621 is about 47669.4411651742. The cubic root of 2272375621 is about 1314.7001337388.

The spelling of 2272375621 in words is "two billion, two hundred seventy-two million, three hundred seventy-five thousand, six hundred twenty-one".