550149870 has 32 divisors (see below), whose sum is σ = 1362954240. Its totient is φ = 141973920.

The previous prime is 550149793. The next prime is 550149871. The reversal of 550149870 is 78941055.

It is a super-2 number, since 2×550149870² = 605329758922033800, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550149871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294850 + ... + 296709.

It is an arithmetic number, because the mean of its divisors is an integer number (42592320).

Almost surely, 2^550149870 is an apocalyptic number.

550149870 is an abundant number, since it is smaller than the sum of its proper divisors (812804370).

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

550149870 is a wasteful number, since it uses less digits than its factorization.

550149870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591600.

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 550149870 is about 23455.2738206144. The cubic root of 550149870 is about 819.3956830414.

The spelling of 550149870 in words is "five hundred fifty million, one hundred forty-nine thousand, eight hundred seventy".