5451624 has 80 divisors (see below), whose sum is σ = 15681600. Its totient is φ = 1768608.

The previous prime is 5451619. The next prime is 5451643. The reversal of 5451624 is 4261545.

5451624 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 30367 + ... + 30545.

It is an arithmetic number, because the mean of its divisors is an integer number (196020).

Almost surely, 2^5451624 is an apocalyptic number.

5451624 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5451624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7840800).

5451624 is an abundant number, since it is smaller than the sum of its proper divisors (10229976).

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

5451624 is a wasteful number, since it uses less digits than its factorization.

5451624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244 (or 231 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 5451624 is about 2334.8713026632. The cubic root of 5451624 is about 175.9983643099.

The spelling of 5451624 in words is "five million, four hundred fifty-one thousand, six hundred twenty-four".