52453421 has 4 divisors (see below), whose sum is σ = 53673312. Its totient is φ = 51233532.

The previous prime is 52453403. The next prime is 52453439. The reversal of 52453421 is 12435425.

It is a happy number.

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.

It is an interprime number because it is at equal distance from previous prime (52453403) and next prime (52453439).

It is a cyclic number.

It is not a de Polignac number, because 52453421 - 2¹⁴ = 52437037 is a prime.

It is a super-2 number, since 2×52453421² = 5502722749206482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52456421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 609881 + ... + 609966.

It is an arithmetic number, because the mean of its divisors is an integer number (13418328).

Almost surely, 2^52453421 is an apocalyptic number.

It is an amenable number.

52453421 is a deficient number, since it is larger than the sum of its proper divisors (1219891).

52453421 is a wasteful number, since it uses less digits than its factorization.

52453421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1219890.

The product of its digits is 4800, while the sum is 26.

The square root of 52453421 is about 7242.4734034720. The cubic root of 52453421 is about 374.3328487581.

Adding to 52453421 its reverse (12435425), we get a palindrome (64888846).

The spelling of 52453421 in words is "fifty-two million, four hundred fifty-three thousand, four hundred twenty-one".