53360421 has 16 divisors (see below), whose sum is σ = 73054848. Its totient is φ = 34632000.

The previous prime is 53360413. The next prime is 53360431. The reversal of 53360421 is 12406335.

It is a happy number.

It is not a de Polignac number, because 53360421 - 2³ = 53360413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53360391 and 53360400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53360431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17040 + ... + 19926.

It is an arithmetic number, because the mean of its divisors is an integer number (4565928).

Almost surely, 2^53360421 is an apocalyptic number.

It is an amenable number.

53360421 is a deficient number, since it is larger than the sum of its proper divisors (19694427).

53360421 is a wasteful number, since it uses less digits than its factorization.

53360421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3052.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 53360421 is about 7304.8217637393. The cubic root of 53360421 is about 376.4781269424.

Adding to 53360421 its reverse (12406335), we get a palindrome (65766756).

The spelling of 53360421 in words is "fifty-three million, three hundred sixty thousand, four hundred twenty-one".