51120501 has 16 divisors (see below), whose sum is σ = 69549120. Its totient is φ = 33390720.

The previous prime is 51120463. The next prime is 51120527. The reversal of 51120501 is 10502115.

It is not a de Polignac number, because 51120501 - 2⁶ = 51120437 is a prime.

It is a super-2 number, since 2×51120501² = 5226611244982002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51120551) 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 15 ways as a sum of consecutive naturals, for example, 74506 + ... + 75188.

It is an arithmetic number, because the mean of its divisors is an integer number (4346820).

Almost surely, 2^51120501 is an apocalyptic number.

It is an amenable number.

51120501 is a deficient number, since it is larger than the sum of its proper divisors (18428619).

51120501 is a wasteful number, since it uses less digits than its factorization.

51120501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156.

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 51120501 is about 7149.8602084237. The cubic root of 51120501 is about 371.1348187617.

Adding to 51120501 its reverse (10502115), we get a palindrome (61622616).

It can be divided in two parts, 511 and 20501, that added together give a palindrome (21012).

The spelling of 51120501 in words is "fifty-one million, one hundred twenty thousand, five hundred one".