2553478 has 4 divisors (see below), whose sum is σ = 3830220. Its totient is φ = 1276738.

The previous prime is 2553457. The next prime is 2553491. The reversal of 2553478 is 8743552.

It is a happy number.

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

It is a d-powerful number, because it can be written as 2²¹ + 5² + 5⁸ + 3³ + 4⁸ + 7² + 8² .

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 638368 + ... + 638371.

It is an arithmetic number, because the mean of its divisors is an integer number (957555).

2^2553478 is an apocalyptic number.

2553478 is a deficient number, since it is larger than the sum of its proper divisors (1276742).

2553478 is a wasteful number, since it uses less digits than its factorization.

2553478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276741.

The product of its digits is 33600, while the sum is 34.

The square root of 2553478 is about 1597.9605752333. The cubic root of 2553478 is about 136.6818054484.

The spelling of 2553478 in words is "two million, five hundred fifty-three thousand, four hundred seventy-eight".