51224151 has 16 divisors (see below), whose sum is σ = 77748480. Its totient is φ = 29694720.

The previous prime is 51224101. The next prime is 51224161. The reversal of 51224151 is 15142215.

It is not a de Polignac number, because 51224151 - 2⁶ = 51224087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51224101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32986 + ... + 34503.

It is an arithmetic number, because the mean of its divisors is an integer number (4859280).

Almost surely, 2^51224151 is an apocalyptic number.

51224151 is a deficient number, since it is larger than the sum of its proper divisors (26524329).

51224151 is a wasteful number, since it uses less digits than its factorization.

51224151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67526.

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

The square root of 51224151 is about 7157.1049314650. The cubic root of 51224151 is about 371.3854824134.

Adding to 51224151 its reverse (15142215), we get a palindrome (66366366).

The spelling of 51224151 in words is "fifty-one million, two hundred twenty-four thousand, one hundred fifty-one".