2551552 has 18 divisors (see below), whose sum is σ = 5093648. Its totient is φ = 1275648.

The previous prime is 2551543. The next prime is 2551559.

It is a happy number.

2551552 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2551559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4728 + ... + 5239.

2^2551552 is an apocalyptic number.

It is an amenable number.

2551552 is a deficient number, since it is larger than the sum of its proper divisors (2542096).

2551552 is an frugal number, since it uses more digits than its factorization.

2551552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9983 (or 9969 counting only the distinct ones).

The product of its digits is 2500, while the sum is 25.

The square root of 2551552 is about 1597.3578183989. The cubic root of 2551552 is about 136.6474320210.

The spelling of 2551552 in words is "two million, five hundred fifty-one thousand, five hundred fifty-two".