551748 has 12 divisors (see below), whose sum is σ = 1287440. Its totient is φ = 183912.

The previous prime is 551743. The next prime is 551753. The reversal of 551748 is 847155.

It is an interprime number because it is at equal distance from previous prime (551743) and next prime (551753).

It is a tau number, because it is divible by the number of its divisors (12).

It is an Ulam number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 551748.

It is not an unprimeable number, because it can be changed into a prime (551743) by changing a digit.

551748 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22978 + ... + 23001.

2⁵⁵¹⁷⁴⁸ is an apocalyptic number.

It is an amenable number.

551748 is an abundant number, since it is smaller than the sum of its proper divisors (735692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

551748 is a wasteful number, since it uses less digits than its factorization.

551748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45986 (or 45984 counting only the distinct ones).

The product of its digits is 5600, while the sum is 30.

The square root of 551748 is about 742.7974151813. The cubic root of 551748 is about 82.0188336672.

It can be divided in two parts, 5517 and 48, that added together give a triangular number (5565 = T₁₀₅).

The spelling of 551748 in words is "five hundred fifty-one thousand, seven hundred forty-eight".