53510421 has 8 divisors (see below), whose sum is σ = 72412384. Its totient is φ = 35141040.

The previous prime is 53510417. The next prime is 53510461. The reversal of 53510421 is 12401535.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53510421 - 2² = 53510417 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 (53510461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132910 + ... + 133311.

It is an arithmetic number, because the mean of its divisors is an integer number (9051548).

Almost surely, 2^53510421 is an apocalyptic number.

It is an amenable number.

53510421 is a deficient number, since it is larger than the sum of its proper divisors (18901963).

53510421 is a wasteful number, since it uses less digits than its factorization.

53510421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266291.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 53510421 is about 7315.0817493723. The cubic root of 53510421 is about 376.8305659794.

Adding to 53510421 its reverse (12401535), we get a palindrome (65911956).

The spelling of 53510421 in words is "fifty-three million, five hundred ten thousand, four hundred twenty-one".