54722172 has 12 divisors (see below), whose sum is σ = 127685096. Its totient is φ = 18240720.

The previous prime is 54722137. The next prime is 54722179. The reversal of 54722172 is 27122745.

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

It is a super-2 number, since 2×54722172² = 5989032216795168, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54722179) 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, 2280079 + ... + 2280102.

Almost surely, 2^54722172 is an apocalyptic number.

It is an amenable number.

54722172 is an abundant number, since it is smaller than the sum of its proper divisors (72962924).

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

54722172 is a wasteful number, since it uses less digits than its factorization.

54722172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4560188 (or 4560186 counting only the distinct ones).

The product of its digits is 7840, while the sum is 30.

The square root of 54722172 is about 7397.4436124921. The cubic root of 54722172 is about 379.6538213857.

The spelling of 54722172 in words is "fifty-four million, seven hundred twenty-two thousand, one hundred seventy-two".