551687541 has 4 divisors (see below), whose sum is σ = 735583392. Its totient is φ = 367791692.

The previous prime is 551687531. The next prime is 551687569. The reversal of 551687541 is 145786155.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 551687541 - 2⁵ = 551687509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 551687493 and 551687502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551687531) 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 3 ways as a sum of consecutive naturals, for example, 91947921 + ... + 91947926.

It is an arithmetic number, because the mean of its divisors is an integer number (183895848).

Almost surely, 2^551687541 is an apocalyptic number.

It is an amenable number.

551687541 is a deficient number, since it is larger than the sum of its proper divisors (183895851).

551687541 is a wasteful number, since it uses less digits than its factorization.

551687541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183895850.

The product of its digits is 168000, while the sum is 42.

The square root of 551687541 is about 23488.0297385711. The cubic root of 551687541 is about 820.1583775980.

The spelling of 551687541 in words is "five hundred fifty-one million, six hundred eighty-seven thousand, five hundred forty-one".