55167590 has 8 divisors (see below), whose sum is σ = 99301680. Its totient is φ = 22067032.

The previous prime is 55167589. The next prime is 55167611. The reversal of 55167590 is 9576155.

55167590 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-4 number, since 4×55167590⁴ (a number of 32 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

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, 2758370 + ... + 2758389.

It is an arithmetic number, because the mean of its divisors is an integer number (12412710).

Almost surely, 2^55167590 is an apocalyptic number.

55167590 is a deficient number, since it is larger than the sum of its proper divisors (44134090).

55167590 is a wasteful number, since it uses less digits than its factorization.

55167590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5516766.

The product of its (nonzero) digits is 47250, while the sum is 38.

The square root of 55167590 is about 7427.4888084736. The cubic root of 55167590 is about 380.6811191401.

The spelling of 55167590 in words is "fifty-five million, one hundred sixty-seven thousand, five hundred ninety".