52626421 has 4 divisors (see below), whose sum is σ = 52902144. Its totient is φ = 52350700.

The previous prime is 52626401. The next prime is 52626433. The reversal of 52626421 is 12462625.

52626421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a cyclic number.

It is not a de Polignac number, because 52626421 - 2¹³ = 52618229 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52626421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52626401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137575 + ... + 137956.

It is an arithmetic number, because the mean of its divisors is an integer number (13225536).

Almost surely, 2^52626421 is an apocalyptic number.

It is an amenable number.

52626421 is a deficient number, since it is larger than the sum of its proper divisors (275723).

52626421 is a wasteful number, since it uses less digits than its factorization.

52626421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275722.

The product of its digits is 5760, while the sum is 28.

The square root of 52626421 is about 7254.4070054002. The cubic root of 52626421 is about 374.7439342244.

The spelling of 52626421 in words is "fifty-two million, six hundred twenty-six thousand, four hundred twenty-one".