53484421 has 4 divisors (see below), whose sum is σ = 53527392. Its totient is φ = 53441452.

The previous prime is 53484419. The next prime is 53484427. The reversal of 53484421 is 12448435.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12448435 = 5 ⋅2489687.

It is a cyclic number.

It is not a de Polignac number, because 53484421 - 2¹ = 53484419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53484427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19561 + ... + 22126.

It is an arithmetic number, because the mean of its divisors is an integer number (13381848).

Almost surely, 2^53484421 is an apocalyptic number.

It is an amenable number.

53484421 is a deficient number, since it is larger than the sum of its proper divisors (42971).

53484421 is a wasteful number, since it uses less digits than its factorization.

53484421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42970.

The product of its digits is 15360, while the sum is 31.

The square root of 53484421 is about 7313.3043831089. The cubic root of 53484421 is about 376.7695237761.

The spelling of 53484421 in words is "fifty-three million, four hundred eighty-four thousand, four hundred twenty-one".