51140541 has 4 divisors (see below), whose sum is σ = 68187392. Its totient is φ = 34093692.

The previous prime is 51140491. The next prime is 51140563. The reversal of 51140541 is 14504115.

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 not a de Polignac number, because 51140541 - 2¹³ = 51132349 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51140581) 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, 8523421 + ... + 8523426.

It is an arithmetic number, because the mean of its divisors is an integer number (17046848).

Almost surely, 2^51140541 is an apocalyptic number.

It is an amenable number.

51140541 is a deficient number, since it is larger than the sum of its proper divisors (17046851).

51140541 is a wasteful number, since it uses less digits than its factorization.

51140541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17046850.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 51140541 is about 7151.2614971066. The cubic root of 51140541 is about 371.1833092235.

Adding to 51140541 its reverse (14504115), we get a palindrome (65644656).

It can be divided in two parts, 51140 and 541, that added together give a triangular number (51681 = T₃₂₁).

The spelling of 51140541 in words is "fifty-one million, one hundred forty thousand, five hundred forty-one".