551099948 has 24 divisors (see below), whose sum is σ = 1167036192. Its totient is φ = 222292224.

The previous prime is 551099947. The next prime is 551099993. The reversal of 551099948 is 849990155.

It is a super-2 number, since 2×551099948² = 607422305371205408, which contains 22 as substring.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 551099896 and 551099905.

It is not an unprimeable number, because it can be changed into a prime (551099947) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 578411 + ... + 579362.

It is an arithmetic number, because the mean of its divisors is an integer number (48626508).

Almost surely, 2^551099948 is an apocalyptic number.

It is an amenable number.

551099948 is an abundant number, since it is smaller than the sum of its proper divisors (615936244).

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

551099948 is a wasteful number, since it uses less digits than its factorization.

551099948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157801 (or 1157799 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 50.

The square root of 551099948 is about 23475.5180560515. The cubic root of 551099948 is about 819.8670952557.

The spelling of 551099948 in words is "five hundred fifty-one million, ninety-nine thousand, nine hundred forty-eight".