550406615 has 48 divisors (see below), whose sum is σ = 748881504. Its totient is φ = 387932160.

The previous prime is 550406557. The next prime is 550406639. The reversal of 550406615 is 516604055.

550406615 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 550406615 - 2⁸ = 550406359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4870799 + ... + 4870911.

It is an arithmetic number, because the mean of its divisors is an integer number (15601698).

Almost surely, 2^550406615 is an apocalyptic number.

550406615 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

550406615 is a deficient number, since it is larger than the sum of its proper divisors (198474889).

550406615 is a wasteful number, since it uses less digits than its factorization.

550406615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320 (or 309 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 550406615 is about 23460.7462583781. The cubic root of 550406615 is about 819.5231289360.

The spelling of 550406615 in words is "five hundred fifty million, four hundred six thousand, six hundred fifteen".