51654241 has 4 divisors (see below), whose sum is σ = 51669184. Its totient is φ = 51639300.

The previous prime is 51654203. The next prime is 51654271. The reversal of 51654241 is 14245615.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 14245615 = 5 ⋅2849123.

It is a cyclic number.

It is not a de Polignac number, because 51654241 - 2¹¹ = 51652193 is a prime.

It is a super-2 number, since 2×51654241² = 5336321226572162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51654271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 676 + ... + 10186.

It is an arithmetic number, because the mean of its divisors is an integer number (12917296).

Almost surely, 2^51654241 is an apocalyptic number.

It is an amenable number.

51654241 is a deficient number, since it is larger than the sum of its proper divisors (14943).

51654241 is an equidigital number, since it uses as much as digits as its factorization.

51654241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14942.

The product of its digits is 4800, while the sum is 28.

The square root of 51654241 is about 7187.0884925678. The cubic root of 51654241 is about 372.4220000940.

Adding to 51654241 its reverse (14245615), we get a palindrome (65899856).

The spelling of 51654241 in words is "fifty-one million, six hundred fifty-four thousand, two hundred forty-one".