659551413 has 4 divisors (see below), whose sum is σ = 879401888. Its totient is φ = 439700940.

The previous prime is 659551391. The next prime is 659551421. The reversal of 659551413 is 314155956.

It is a happy number.

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 not a de Polignac number, because 659551413 - 2⁶ = 659551349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (659551433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109925233 + ... + 109925238.

It is an arithmetic number, because the mean of its divisors is an integer number (219850472).

Almost surely, 2^659551413 is an apocalyptic number.

It is an amenable number.

659551413 is a deficient number, since it is larger than the sum of its proper divisors (219850475).

659551413 is a wasteful number, since it uses less digits than its factorization.

659551413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219850474.

The product of its digits is 81000, while the sum is 39.

The square root of 659551413 is about 25681.7330606795. The cubic root of 659551413 is about 870.4614687512.

The spelling of 659551413 in words is "six hundred fifty-nine million, five hundred fifty-one thousand, four hundred thirteen".