549725887 has 2 divisors, whose sum is σ = 549725888. Its totient is φ = 549725886.

The previous prime is 549725873. The next prime is 549725899. The reversal of 549725887 is 788527945.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 549725887 - 2¹⁹ = 549201599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (549725087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274862943 + 274862944.

It is an arithmetic number, because the mean of its divisors is an integer number (274862944).

Almost surely, 2^549725887 is an apocalyptic number.

549725887 is a deficient number, since it is larger than the sum of its proper divisors (1).

549725887 is an equidigital number, since it uses as much as digits as its factorization.

549725887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5644800, while the sum is 55.

The square root of 549725887 is about 23446.2339619820. The cubic root of 549725887 is about 819.1851348842.

The spelling of 549725887 in words is "five hundred forty-nine million, seven hundred twenty-five thousand, eight hundred eighty-seven".