54172620 has 72 divisors (see below), whose sum is σ = 167141520. Its totient is φ = 14198400.

The previous prime is 54172589. The next prime is 54172621. The reversal of 54172620 is 2627145.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54172621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8070 + ... + 13170.

It is an arithmetic number, because the mean of its divisors is an integer number (2321410).

Almost surely, 2^54172620 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 54172620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83570760).

54172620 is an abundant number, since it is smaller than the sum of its proper divisors (112968900).

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

54172620 is a wasteful number, since it uses less digits than its factorization.

54172620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5175 (or 5170 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 54172620 is about 7360.2051601841. The cubic root of 54172620 is about 378.3786413337.

Adding to 54172620 its reverse (2627145), we get a palindrome (56799765).

The spelling of 54172620 in words is "fifty-four million, one hundred seventy-two thousand, six hundred twenty".