52421375 has 16 divisors (see below), whose sum is σ = 65707200. Its totient is φ = 41754400.

The previous prime is 52421371. The next prime is 52421431. The reversal of 52421375 is 57312425.

It is a happy number.

It is not a de Polignac number, because 52421375 - 2² = 52421371 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52421371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32846 + ... + 34404.

It is an arithmetic number, because the mean of its divisors is an integer number (4106700).

Almost surely, 2^52421375 is an apocalyptic number.

52421375 is a deficient number, since it is larger than the sum of its proper divisors (13285825).

52421375 is a wasteful number, since it uses less digits than its factorization.

52421375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1843 (or 1833 counting only the distinct ones).

The product of its digits is 8400, while the sum is 29.

The square root of 52421375 is about 7240.2606997262. The cubic root of 52421375 is about 374.2566013370.

It can be divided in two parts, 524213 and 75, that added together give a 19-th power (524288 = 2¹⁹).

The spelling of 52421375 in words is "fifty-two million, four hundred twenty-one thousand, three hundred seventy-five".