51853901 has 4 divisors (see below), whose sum is σ = 56567904. Its totient is φ = 47139900.

The previous prime is 51853897. The next prime is 51853903. The reversal of 51853901 is 10935815.

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 51853901 - 2² = 51853897 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 (51853903) 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, 2356985 + ... + 2357006.

It is an arithmetic number, because the mean of its divisors is an integer number (14141976).

Almost surely, 2^51853901 is an apocalyptic number.

It is an amenable number.

51853901 is a deficient number, since it is larger than the sum of its proper divisors (4714003).

51853901 is a wasteful number, since it uses less digits than its factorization.

51853901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4714002.

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 51853901 is about 7200.9652825159. The cubic root of 51853901 is about 372.9012261611.

The spelling of 51853901 in words is "fifty-one million, eight hundred fifty-three thousand, nine hundred one".