550556040 has 32 divisors (see below), whose sum is σ = 1651668480. Its totient is φ = 146814912.

The previous prime is 550556021. The next prime is 550556053. The reversal of 550556040 is 40655055.

It is a super-2 number, since 2×550556040² = 606223906360963200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 550555989 and 550556007.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2293864 + ... + 2294103.

It is an arithmetic number, because the mean of its divisors is an integer number (51614640).

Almost surely, 2^550556040 is an apocalyptic number.

It is an amenable number.

550556040 is an abundant number, since it is smaller than the sum of its proper divisors (1101112440).

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

550556040 is a wasteful number, since it uses less digits than its factorization.

550556040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4587981 (or 4587977 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 550556040 is about 23463.9306170130. The cubic root of 550556040 is about 819.5972839093.

The spelling of 550556040 in words is "five hundred fifty million, five hundred fifty-six thousand, forty".