550517408 has 24 divisors (see below), whose sum is σ = 1238664672. Its totient is φ = 235935936.

The previous prime is 550517399. The next prime is 550517447. The reversal of 550517408 is 804715055.

It is a super-2 number, since 2×550517408² = 606138833022076928, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1228610 + ... + 1229057.

It is an arithmetic number, because the mean of its divisors is an integer number (51611028).

Almost surely, 2^550517408 is an apocalyptic number.

It is an amenable number.

550517408 is an abundant number, since it is smaller than the sum of its proper divisors (688147264).

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

550517408 is a wasteful number, since it uses less digits than its factorization.

550517408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2457684 (or 2457676 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 35.

The square root of 550517408 is about 23463.1073815895. The cubic root of 550517408 is about 819.5781133372.

The spelling of 550517408 in words is "five hundred fifty million, five hundred seventeen thousand, four hundred eight".