52421085 has 24 divisors (see below), whose sum is σ = 92979744. Its totient is φ = 27306720.

The previous prime is 52421069. The next prime is 52421107. The reversal of 52421085 is 58012425.

It is a happy number.

It is not a de Polignac number, because 52421085 - 2⁴ = 52421069 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 11611 + ... + 15480.

It is an arithmetic number, because the mean of its divisors is an integer number (3874156).

Almost surely, 2^52421085 is an apocalyptic number.

It is an amenable number.

52421085 is a deficient number, since it is larger than the sum of its proper divisors (40558659).

52421085 is a wasteful number, since it uses less digits than its factorization.

52421085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27145 (or 27142 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 52421085 is about 7240.2406727953. The cubic root of 52421085 is about 374.2559111948.

It can be divided in two parts, 524 and 21085, that added together give a square (21609 = 147²).

The spelling of 52421085 in words is "fifty-two million, four hundred twenty-one thousand, eighty-five".