551457642 has 16 divisors (see below), whose sum is σ = 1110319200. Its totient is φ = 182585232.

The previous prime is 551457631. The next prime is 551457689. The reversal of 551457642 is 246754155.

551457642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 551457642.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307528 + ... + 309315.

It is an arithmetic number, because the mean of its divisors is an integer number (69394950).

Almost surely, 2^551457642 is an apocalyptic number.

551457642 is an abundant number, since it is smaller than the sum of its proper divisors (558861558).

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

551457642 is a wasteful number, since it uses less digits than its factorization.

551457642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616997.

The product of its digits is 168000, while the sum is 39.

The square root of 551457642 is about 23483.1352676767. The cubic root of 551457642 is about 820.0444364180.

The spelling of 551457642 in words is "five hundred fifty-one million, four hundred fifty-seven thousand, six hundred forty-two".