551542651 has 4 divisors (see below), whose sum is σ = 601682904. Its totient is φ = 501402400.

The previous prime is 551542637. The next prime is 551542699. The reversal of 551542651 is 156245155.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-551542651 is a prime.

It is a super-3 number, since 3×551542651³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551542601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25070110 + ... + 25070131.

It is an arithmetic number, because the mean of its divisors is an integer number (150420726).

Almost surely, 2^551542651 is an apocalyptic number.

551542651 is a deficient number, since it is larger than the sum of its proper divisors (50140253).

551542651 is a wasteful number, since it uses less digits than its factorization.

551542651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50140252.

The product of its digits is 30000, while the sum is 34.

The square root of 551542651 is about 23484.9451989993. The cubic root of 551542651 is about 820.0865717641.

The spelling of 551542651 in words is "five hundred fifty-one million, five hundred forty-two thousand, six hundred fifty-one".