551263442 has 8 divisors (see below), whose sum is σ = 838222716. Its totient is φ = 271855872.

The previous prime is 551263429. The next prime is 551263469. The reversal of 551263442 is 244362155.

551263442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 23479²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 551263441 + 1 = 23479^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 551263399 and 551263408.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1887743 + ... + 1888034.

Almost surely, 2^551263442 is an apocalyptic number.

551263442 is a deficient number, since it is larger than the sum of its proper divisors (286959274).

551263442 is a wasteful number, since it uses less digits than its factorization.

551263442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3775852.

The product of its digits is 28800, while the sum is 32.

The square root of 551263442 is about 23479.0000212956. Note that the first 4 decimals coincide. The cubic root of 551263442 is about 819.9481634890.

The spelling of 551263442 in words is "five hundred fifty-one million, two hundred sixty-three thousand, four hundred forty-two".