51534791 has 8 divisors (see below), whose sum is σ = 64251264. Its totient is φ = 40156920.

The previous prime is 51534773. The next prime is 51534811. The reversal of 51534791 is 19743515.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51534791 - 2⁶ = 51534727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51534761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 334565 + ... + 334718.

It is an arithmetic number, because the mean of its divisors is an integer number (8031408).

Almost surely, 2^51534791 is an apocalyptic number.

51534791 is a deficient number, since it is larger than the sum of its proper divisors (12716473).

51534791 is a wasteful number, since it uses less digits than its factorization.

51534791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669301.

The product of its digits is 18900, while the sum is 35.

The square root of 51534791 is about 7178.7736417859. The cubic root of 51534791 is about 372.1347042709.

It can be divided in two parts, 51534 and 791, that added together give a palindrome (52325).

The spelling of 51534791 in words is "fifty-one million, five hundred thirty-four thousand, seven hundred ninety-one".