551804148 has 36 divisors (see below), whose sum is σ = 1594101600. Its totient is φ = 157658256.

The previous prime is 551804131. The next prime is 551804159. The reversal of 551804148 is 841408155.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1094598 + ... + 1095101.

It is an arithmetic number, because the mean of its divisors is an integer number (44280600).

Almost surely, 2^551804148 is an apocalyptic number.

It is an amenable number.

551804148 is an abundant number, since it is smaller than the sum of its proper divisors (1042297452).

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

551804148 is a wasteful number, since it uses less digits than its factorization.

551804148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2189716 (or 2189711 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 36.

The square root of 551804148 is about 23490.5118718175. The cubic root of 551804148 is about 820.2161575692.

The spelling of 551804148 in words is "five hundred fifty-one million, eight hundred four thousand, one hundred forty-eight".