55672273 has 4 divisors (see below), whose sum is σ = 55695600. Its totient is φ = 55648948.

The previous prime is 55672237. The next prime is 55672283. The reversal of 55672273 is 37227655.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37227655 = 5 ⋅7445531.

It is a cyclic number.

It is not a de Polignac number, because 55672273 - 2⁹ = 55671761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55672283) 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, 7615 + ... + 13012.

It is an arithmetic number, because the mean of its divisors is an integer number (13923900).

Almost surely, 2^55672273 is an apocalyptic number.

It is an amenable number.

55672273 is a deficient number, since it is larger than the sum of its proper divisors (23327).

55672273 is a wasteful number, since it uses less digits than its factorization.

55672273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23326.

The product of its digits is 88200, while the sum is 37.

The square root of 55672273 is about 7461.3854611593. The cubic root of 55672273 is about 381.8384435118.

It can be divided in two parts, 55672 and 273, that added together give a triangular number (55945 = T₃₃₄).

The spelling of 55672273 in words is "fifty-five million, six hundred seventy-two thousand, two hundred seventy-three".