51641423 has 4 divisors (see below), whose sum is σ = 51655800. Its totient is φ = 51627048.

The previous prime is 51641347. The next prime is 51641437. The reversal of 51641423 is 32414615.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 51641423 - 2⁸ = 51641167 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51641392 and 51641401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51641483) 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, 3353 + ... + 10701.

It is an arithmetic number, because the mean of its divisors is an integer number (12913950).

Almost surely, 2^51641423 is an apocalyptic number.

51641423 is a deficient number, since it is larger than the sum of its proper divisors (14377).

51641423 is an equidigital number, since it uses as much as digits as its factorization.

51641423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14376.

The product of its digits is 2880, while the sum is 26.

The square root of 51641423 is about 7186.1966992283. The cubic root of 51641423 is about 372.3911920388.

The spelling of 51641423 in words is "fifty-one million, six hundred forty-one thousand, four hundred twenty-three".