2453275021 has 4 divisors (see below), whose sum is σ = 2468325952. Its totient is φ = 2438224092.

The previous prime is 2453275009. The next prime is 2453275031. The reversal of 2453275021 is 1205723542.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1205723542 = 2 ⋅602861771.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2453275021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2453275031) 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, 7525221 + ... + 7525546.

It is an arithmetic number, because the mean of its divisors is an integer number (617081488).

Almost surely, 2^2453275021 is an apocalyptic number.

It is an amenable number.

2453275021 is a deficient number, since it is larger than the sum of its proper divisors (15050931).

2453275021 is a wasteful number, since it uses less digits than its factorization.

2453275021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15050930.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 2453275021 is about 49530.5463426359. The cubic root of 2453275021 is about 1348.7001701853.

Adding to 2453275021 its reverse (1205723542), we get a palindrome (3658998563).

The spelling of 2453275021 in words is "two billion, four hundred fifty-three million, two hundred seventy-five thousand, twenty-one".