551424425 has 24 divisors (see below), whose sum is σ = 715132800. Its totient is φ = 420992000.

The previous prime is 551424421. The next prime is 551424437. The reversal of 551424425 is 524424155.

It is not a de Polignac number, because 551424425 - 2² = 551424421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 551424391 and 551424400.

It is not an unprimeable number, because it can be changed into a prime (551424421) 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 23 ways as a sum of consecutive naturals, for example, 343625 + ... + 345225.

It is an arithmetic number, because the mean of its divisors is an integer number (29797200).

Almost surely, 2^551424425 is an apocalyptic number.

It is an amenable number.

551424425 is a deficient number, since it is larger than the sum of its proper divisors (163708375).

551424425 is a wasteful number, since it uses less digits than its factorization.

551424425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2233 (or 2228 counting only the distinct ones).

The product of its digits is 32000, while the sum is 32.

The square root of 551424425 is about 23482.4280047869. The cubic root of 551424425 is about 820.0279709872.

The spelling of 551424425 in words is "five hundred fifty-one million, four hundred twenty-four thousand, four hundred twenty-five".