55377642 has 8 divisors (see below), whose sum is σ = 110755296. Its totient is φ = 18459212.

The previous prime is 55377631. The next prime is 55377643. The reversal of 55377642 is 24677355.

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

55377642 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 55377642.

It is not an unprimeable number, because it can be changed into a prime (55377643) 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 3 ways as a sum of consecutive naturals, for example, 4614798 + ... + 4614809.

It is an arithmetic number, because the mean of its divisors is an integer number (13844412).

Almost surely, 2^55377642 is an apocalyptic number.

55377642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55377642 is a wasteful number, since it uses less digits than its factorization.

55377642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9229612.

The product of its digits is 176400, while the sum is 39.

The square root of 55377642 is about 7441.6155504030. The cubic root of 55377642 is about 381.1636582403.

The spelling of 55377642 in words is "fifty-five million, three hundred seventy-seven thousand, six hundred forty-two".