53421480 has 384 divisors, whose sum is σ = 222393600. Its totient is φ = 10838016.

The previous prime is 53421461. The next prime is 53421493. The reversal of 53421480 is 8412435.

53421480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 7309²-1.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1242339 + ... + 1242381.

It is an arithmetic number, because the mean of its divisors is an integer number (579150).

Almost surely, 2^53421480 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 53421480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111196800).

53421480 is an abundant number, since it is smaller than the sum of its proper divisors (168972120).

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

53421480 is a wasteful number, since it uses less digits than its factorization.

53421480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 53421480 is about 7308.9999315912. Note that the first 4 decimals coincide. The cubic root of 53421480 is about 376.6216703849.

The spelling of 53421480 in words is "fifty-three million, four hundred twenty-one thousand, four hundred eighty".