551974 has 4 divisors (see below), whose sum is σ = 827964. Its totient is φ = 275986.

The previous prime is 551963. The next prime is 551981. The reversal of 551974 is 479155.

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

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, 137992 + ... + 137995.

It is an arithmetic number, because the mean of its divisors is an integer number (206991).

2⁵⁵¹⁹⁷⁴ is an apocalyptic number.

551974 is a deficient number, since it is larger than the sum of its proper divisors (275990).

551974 is a wasteful number, since it uses less digits than its factorization.

551974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275989.

The product of its digits is 6300, while the sum is 31.

The square root of 551974 is about 742.9495272224. The cubic root of 551974 is about 82.0300306425.

The spelling of 551974 in words is "five hundred fifty-one thousand, nine hundred seventy-four".