54021825 has 144 divisors (see below), whose sum is σ = 120242304. Its totient is φ = 22809600.

The previous prime is 54021823. The next prime is 54021829. The reversal of 54021825 is 52812045.

It is a happy number.

It is not a de Polignac number, because 54021825 - 2¹ = 54021823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54021823) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 739989 + ... + 740061.

It is an arithmetic number, because the mean of its divisors is an integer number (835016).

Almost surely, 2^54021825 is an apocalyptic number.

54021825 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

54021825 is an abundant number, since it is smaller than the sum of its proper divisors (66220479).

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

54021825 is a wasteful number, since it uses less digits than its factorization.

54021825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136 (or 128 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 54021825 is about 7349.9540814892. The cubic root of 54021825 is about 378.0272299188.

It can be divided in two parts, 5402 and 1825, that added together give a palindrome (7227).

The spelling of 54021825 in words is "fifty-four million, twenty-one thousand, eight hundred twenty-five".