551685050 has 24 divisors (see below), whose sum is σ = 1172725536. Its totient is φ = 189149040.

The previous prime is 551685049. The next prime is 551685089. The reversal of 551685050 is 50586155.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 551685050.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 787772 + ... + 788471.

It is an arithmetic number, because the mean of its divisors is an integer number (48863564).

Almost surely, 2^551685050 is an apocalyptic number.

551685050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

551685050 is an abundant number, since it is smaller than the sum of its proper divisors (621040486).

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

551685050 is a wasteful number, since it uses less digits than its factorization.

551685050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1576262 (or 1576257 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 35.

The square root of 551685050 is about 23487.9767115007. The cubic root of 551685050 is about 820.1571431930.

The spelling of 551685050 in words is "five hundred fifty-one million, six hundred eighty-five thousand, fifty".