55272468 has 12 divisors (see below), whose sum is σ = 128969120. Its totient is φ = 18424152.

The previous prime is 55272467. The next prime is 55272479. The reversal of 55272468 is 86427255.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×55272468² = 6110091437622048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55272467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2303008 + ... + 2303031.

Almost surely, 2^55272468 is an apocalyptic number.

It is an amenable number.

55272468 is an abundant number, since it is smaller than the sum of its proper divisors (73696652).

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

55272468 is a wasteful number, since it uses less digits than its factorization.

55272468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4606046 (or 4606044 counting only the distinct ones).

The product of its digits is 134400, while the sum is 39.

The square root of 55272468 is about 7434.5455812713. The cubic root of 55272468 is about 380.9222015150.

The spelling of 55272468 in words is "fifty-five million, two hundred seventy-two thousand, four hundred sixty-eight".