53623861 has 4 divisors (see below), whose sum is σ = 54532800. Its totient is φ = 52714924.

The previous prime is 53623853. The next prime is 53623873. The reversal of 53623861 is 16832635.

53623861 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 53623861 - 2³ = 53623853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53623061) 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, 454381 + ... + 454498.

It is an arithmetic number, because the mean of its divisors is an integer number (13633200).

Almost surely, 2^53623861 is an apocalyptic number.

It is an amenable number.

53623861 is a deficient number, since it is larger than the sum of its proper divisors (908939).

53623861 is an equidigital number, since it uses as much as digits as its factorization.

53623861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908938.

The product of its digits is 25920, while the sum is 34.

The square root of 53623861 is about 7322.8314878877. The cubic root of 53623861 is about 377.0966667148.

The spelling of 53623861 in words is "fifty-three million, six hundred twenty-three thousand, eight hundred sixty-one".