51896231 has 4 divisors (see below), whose sum is σ = 51960264. Its totient is φ = 51832200.

The previous prime is 51896219. The next prime is 51896233. The reversal of 51896231 is 13269815.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51896231 - 2¹⁴ = 51879847 is a prime.

It is a super-2 number, since 2×51896231² = 5386437584010722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51896191 and 51896200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51896233) 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, 30785 + ... + 32426.

It is an arithmetic number, because the mean of its divisors is an integer number (12990066).

Almost surely, 2^51896231 is an apocalyptic number.

51896231 is a deficient number, since it is larger than the sum of its proper divisors (64033).

51896231 is an equidigital number, since it uses as much as digits as its factorization.

51896231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64032.

The product of its digits is 12960, while the sum is 35.

The square root of 51896231 is about 7203.9038722071. The cubic root of 51896231 is about 373.0026689668.

The spelling of 51896231 in words is "fifty-one million, eight hundred ninety-six thousand, two hundred thirty-one".