53026421 has 8 divisors (see below), whose sum is σ = 61455744. Its totient is φ = 44810640.

The previous prime is 53026411. The next prime is 53026469. The reversal of 53026421 is 12462035.

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

It is a de Polignac number, because none of the positive numbers 2^k-53026421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53026411) 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, 52850 + ... + 53843.

It is an arithmetic number, because the mean of its divisors is an integer number (7681968).

Almost surely, 2^53026421 is an apocalyptic number.

It is an amenable number.

53026421 is a deficient number, since it is larger than the sum of its proper divisors (8429323).

53026421 is a wasteful number, since it uses less digits than its factorization.

53026421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106771.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 53026421 is about 7281.9242649179. The cubic root of 53026421 is about 375.6909831825.

Adding to 53026421 its reverse (12462035), we get a palindrome (65488456).

The spelling of 53026421 in words is "fifty-three million, twenty-six thousand, four hundred twenty-one".