653270551 has 4 divisors (see below), whose sum is σ = 654994600. Its totient is φ = 651546504.

The previous prime is 653270549. The next prime is 653270567. The reversal of 653270551 is 155072356.

653270551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 653270551 - 2¹ = 653270549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653270851) 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, 861456 + ... + 862213.

It is an arithmetic number, because the mean of its divisors is an integer number (163748650).

Almost surely, 2^653270551 is an apocalyptic number.

653270551 is a deficient number, since it is larger than the sum of its proper divisors (1724049).

653270551 is a wasteful number, since it uses less digits than its factorization.

653270551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1724048.

The product of its (nonzero) digits is 31500, while the sum is 34.

The square root of 653270551 is about 25559.1578695387. The cubic root of 653270551 is about 867.6895364968.

The spelling of 653270551 in words is "six hundred fifty-three million, two hundred seventy thousand, five hundred fifty-one".