51032641 has 4 divisors (see below), whose sum is σ = 55671984. Its totient is φ = 46393300.

The previous prime is 51032629. The next prime is 51032677. The reversal of 51032641 is 14623015.

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 51032641 - 2⁵ = 51032609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51032441) 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, 2319655 + ... + 2319676.

It is an arithmetic number, because the mean of its divisors is an integer number (13917996).

Almost surely, 2^51032641 is an apocalyptic number.

It is an amenable number.

51032641 is a deficient number, since it is larger than the sum of its proper divisors (4639343).

51032641 is a wasteful number, since it uses less digits than its factorization.

51032641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4639342.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 51032641 is about 7143.7133901074. The cubic root of 51032641 is about 370.9220756463.

Adding to 51032641 its reverse (14623015), we get a palindrome (65655656).

It can be divided in two parts, 5103 and 2641, that added together give a square (7744 = 88²).

The spelling of 51032641 in words is "fifty-one million, thirty-two thousand, six hundred forty-one".