55672272 has 160 divisors (see below), whose sum is σ = 170008960. Its totient is φ = 17635968.

The previous prime is 55672237. The next prime is 55672283. The reversal of 55672272 is 27227655.

55672272 is a `hidden beast` number, since 5 + 567 + 22 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1294683 + ... + 1294725.

It is an arithmetic number, because the mean of its divisors is an integer number (1062556).

Almost surely, 2^55672272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55672272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85004480).

55672272 is an abundant number, since it is smaller than the sum of its proper divisors (114336688).

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

55672272 is an equidigital number, since it uses as much as digits as its factorization.

55672272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 85 counting only the distinct ones).

The product of its digits is 58800, while the sum is 36.

The square root of 55672272 is about 7461.3853941477. The cubic root of 55672272 is about 381.8384412256.

The spelling of 55672272 in words is "fifty-five million, six hundred seventy-two thousand, two hundred seventy-two".