51345501 has 8 divisors (see below), whose sum is σ = 68493984. Its totient is φ = 34213680.

The previous prime is 51345487. The next prime is 51345521. The reversal of 51345501 is 10554315.

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

It is not a de Polignac number, because 51345501 - 2⁹ = 51344989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51345521) 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, 8755 + ... + 13391.

It is an arithmetic number, because the mean of its divisors is an integer number (8561748).

Almost surely, 2^51345501 is an apocalyptic number.

It is an amenable number.

51345501 is a deficient number, since it is larger than the sum of its proper divisors (17148483).

51345501 is a wasteful number, since it uses less digits than its factorization.

51345501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8331.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 51345501 is about 7165.5775063843. The cubic root of 51345501 is about 371.6785218345.

Adding to 51345501 its reverse (10554315), we get a palindrome (61899816).

The spelling of 51345501 in words is "fifty-one million, three hundred forty-five thousand, five hundred one".