53386861 has 4 divisors (see below), whose sum is σ = 58240224. Its totient is φ = 48533500.

The previous prime is 53386859. The next prime is 53386889. The reversal of 53386861 is 16868335.

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 53386861 - 2¹ = 53386859 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 (53386831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2426665 + ... + 2426686.

It is an arithmetic number, because the mean of its divisors is an integer number (14560056).

Almost surely, 2^53386861 is an apocalyptic number.

It is an amenable number.

53386861 is a deficient number, since it is larger than the sum of its proper divisors (4853363).

53386861 is a wasteful number, since it uses less digits than its factorization.

53386861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4853362.

The product of its digits is 103680, while the sum is 40.

The square root of 53386861 is about 7306.6313031383. The cubic root of 53386861 is about 376.5402981039.

The spelling of 53386861 in words is "fifty-three million, three hundred eighty-six thousand, eight hundred sixty-one".