2553481 has 8 divisors (see below), whose sum is σ = 2997440. Its totient is φ = 2129328.

The previous prime is 2553457. The next prime is 2553491. The reversal of 2553481 is 1843552.

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

It is a cyclic number.

It is not a de Polignac number, because 2553481 - 2⁹ = 2552969 is a prime.

It is a super-2 number, since 2×2553481² = 13040530434722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2553431) 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, 4671 + ... + 5188.

It is an arithmetic number, because the mean of its divisors is an integer number (374680).

2^2553481 is an apocalyptic number.

It is an amenable number.

2553481 is a deficient number, since it is larger than the sum of its proper divisors (443959).

2553481 is an equidigital number, since it uses as much as digits as its factorization.

2553481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9903.

The product of its digits is 4800, while the sum is 28.

The square root of 2553481 is about 1597.9615139295. The cubic root of 2553481 is about 136.6818589761.

The spelling of 2553481 in words is "two million, five hundred fifty-three thousand, four hundred eighty-one".