2275725021 has 4 divisors (see below), whose sum is σ = 3034300032. Its totient is φ = 1517150012.

The previous prime is 2275725017. The next prime is 2275725029. The reversal of 2275725021 is 1205275722.

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 2275725021 - 2² = 2275725017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2275725029) 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, 379287501 + ... + 379287506.

It is an arithmetic number, because the mean of its divisors is an integer number (758575008).

Almost surely, 2^2275725021 is an apocalyptic number.

It is an amenable number.

2275725021 is a deficient number, since it is larger than the sum of its proper divisors (758575011).

2275725021 is an equidigital number, since it uses as much as digits as its factorization.

2275725021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758575010.

The product of its (nonzero) digits is 19600, while the sum is 33.

The square root of 2275725021 is about 47704.5597506150. The cubic root of 2275725021 is about 1315.3457568839.

The spelling of 2275725021 in words is "two billion, two hundred seventy-five million, seven hundred twenty-five thousand, twenty-one".