55367661 has 8 divisors (see below), whose sum is σ = 74925664. Its totient is φ = 36360720.

The previous prime is 55367639. The next prime is 55367707. The reversal of 55367661 is 16676355.

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

It is not a de Polignac number, because 55367661 - 2¹⁵ = 55334893 is a prime.

It is a super-2 number, since 2×55367661² = 6131155769221842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55367621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137530 + ... + 137931.

It is an arithmetic number, because the mean of its divisors is an integer number (9365708).

Almost surely, 2^55367661 is an apocalyptic number.

It is an amenable number.

55367661 is a deficient number, since it is larger than the sum of its proper divisors (19558003).

55367661 is a wasteful number, since it uses less digits than its factorization.

55367661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275531.

The product of its digits is 113400, while the sum is 39.

The square root of 55367661 is about 7440.9448996750. The cubic root of 55367661 is about 381.1407571626.

The spelling of 55367661 in words is "fifty-five million, three hundred sixty-seven thousand, six hundred sixty-one".