52421455 has 8 divisors (see below), whose sum is σ = 66606192. Its totient is φ = 39470208.

The previous prime is 52421431. The next prime is 52421471. The reversal of 52421455 is 55412425.

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

It is a cyclic number.

It is not a de Polignac number, because 52421455 - 2²³ = 44032847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308277 + ... + 308446.

It is an arithmetic number, because the mean of its divisors is an integer number (8325774).

Almost surely, 2^52421455 is an apocalyptic number.

52421455 is a deficient number, since it is larger than the sum of its proper divisors (14184737).

52421455 is a wasteful number, since it uses less digits than its factorization.

52421455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616745.

The product of its digits is 8000, while the sum is 28.

The square root of 52421455 is about 7240.2662243871. The cubic root of 52421455 is about 374.2567917207.

The spelling of 52421455 in words is "fifty-two million, four hundred twenty-one thousand, four hundred fifty-five".