2653772251 has 4 divisors (see below), whose sum is σ = 2857908592. Its totient is φ = 2449635912.

The previous prime is 2653772213. The next prime is 2653772263. The reversal of 2653772251 is 1522773562.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1522773562 = 2 ⋅761386781.

It is a cyclic number.

It is not a de Polignac number, because 2653772251 - 2²¹ = 2651675099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2653772651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102068151 + ... + 102068176.

It is an arithmetic number, because the mean of its divisors is an integer number (714477148).

Almost surely, 2^2653772251 is an apocalyptic number.

2653772251 is a deficient number, since it is larger than the sum of its proper divisors (204136341).

2653772251 is a wasteful number, since it uses less digits than its factorization.

2653772251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204136340.

The product of its digits is 176400, while the sum is 40.

The square root of 2653772251 is about 51514.7770159204. Note that the first 3 decimals coincide. The cubic root of 2653772251 is about 1384.4838142984.

The spelling of 2653772251 in words is "two billion, six hundred fifty-three million, seven hundred seventy-two thousand, two hundred fifty-one".