2553546621 has 8 divisors (see below), whose sum is σ = 3429223840. Its totient is φ = 1690116912.

The previous prime is 2553546607. The next prime is 2553546623. The reversal of 2553546621 is 1266453552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2553546621 - 2⁹ = 2553546109 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2553546621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2553546623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3061390 + ... + 3062223.

It is an arithmetic number, because the mean of its divisors is an integer number (428652980).

Almost surely, 2^2553546621 is an apocalyptic number.

It is an amenable number.

2553546621 is a deficient number, since it is larger than the sum of its proper divisors (875677219).

2553546621 is a wasteful number, since it uses less digits than its factorization.

2553546621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6123755.

The product of its digits is 216000, while the sum is 39.

The square root of 2553546621 is about 50532.6292706010. The cubic root of 2553546621 is about 1366.8302981219.

The spelling of 2553546621 in words is "two billion, five hundred fifty-three million, five hundred forty-six thousand, six hundred twenty-one".