54212620 has 144 divisors (see below), whose sum is σ = 148925952. Its totient is φ = 16383360.

The previous prime is 54212603. The next prime is 54212657. The reversal of 54212620 is 2621245.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 54212591 and 54212600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 506607 + ... + 506713.

It is an arithmetic number, because the mean of its divisors is an integer number (1034208).

Almost surely, 2^54212620 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 54212620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74462976).

54212620 is an abundant number, since it is smaller than the sum of its proper divisors (94713332).

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

54212620 is a wasteful number, since it uses less digits than its factorization.

54212620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188 (or 179 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 54212620 is about 7362.9219743251. The cubic root of 54212620 is about 378.4717475438.

Adding to 54212620 its reverse (2621245), we get a palindrome (56833865).

The spelling of 54212620 in words is "fifty-four million, two hundred twelve thousand, six hundred twenty".