55272642 has 8 divisors (see below), whose sum is σ = 110545296. Its totient is φ = 18424212.

The previous prime is 55272641. The next prime is 55272643. The reversal of 55272642 is 24627255.

It is an interprime number because it is at equal distance from previous prime (55272641) and next prime (55272643).

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

55272642 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (55272641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4606048 + ... + 4606059.

It is an arithmetic number, because the mean of its divisors is an integer number (13818162).

Almost surely, 2^55272642 is an apocalyptic number.

55272642 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.

55272642 is a wasteful number, since it uses less digits than its factorization.

55272642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9212112.

The product of its digits is 33600, while the sum is 33.

The square root of 55272642 is about 7434.5572833895. The cubic root of 55272642 is about 380.9226012341.

Adding to 55272642 its reverse (24627255), we get a palindrome (79899897).

The spelling of 55272642 in words is "fifty-five million, two hundred seventy-two thousand, six hundred forty-two".