52421685 has 16 divisors (see below), whose sum is σ = 85660416. Its totient is φ = 27363008.

The previous prime is 52421683. The next prime is 52421689. The reversal of 52421685 is 58612425.

It is a cyclic number.

It is not a de Polignac number, because 52421685 - 2¹ = 52421683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52421683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36474 + ... + 37883.

It is an arithmetic number, because the mean of its divisors is an integer number (5353776).

Almost surely, 2^52421685 is an apocalyptic number.

It is an amenable number.

52421685 is a deficient number, since it is larger than the sum of its proper divisors (33238731).

52421685 is a wasteful number, since it uses less digits than its factorization.

52421685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74412.

The product of its digits is 19200, while the sum is 33.

The square root of 52421685 is about 7240.2821077635. The cubic root of 52421685 is about 374.2573390725.

The spelling of 52421685 in words is "fifty-two million, four hundred twenty-one thousand, six hundred eighty-five".