2551748 has 6 divisors (see below), whose sum is σ = 4465566. Its totient is φ = 1275872.

The previous prime is 2551733. The next prime is 2551793. The reversal of 2551748 is 8471552.

It can be written as a sum of positive squares in only one way, i.e., 1898884 + 652864 = 1378^2 + 808^2 .

It is a super-2 number, since 2×2551748² = 13022835711008, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 318965 + ... + 318972.

It is an arithmetic number, because the mean of its divisors is an integer number (744261).

2^2551748 is an apocalyptic number.

It is an amenable number.

2551748 is a deficient number, since it is larger than the sum of its proper divisors (1913818).

2551748 is a wasteful number, since it uses less digits than its factorization.

2551748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637941 (or 637939 counting only the distinct ones).

The product of its digits is 11200, while the sum is 32.

The square root of 2551748 is about 1597.4191685340. The cubic root of 2551748 is about 136.6509308342.

The spelling of 2551748 in words is "two million, five hundred fifty-one thousand, seven hundred forty-eight".