51152155 has 24 divisors (see below), whose sum is σ = 64964592. Its totient is φ = 38630592.

The previous prime is 51152149. The next prime is 51152159. The reversal of 51152155 is 55125115.

It is not a de Polignac number, because 51152155 - 2¹¹ = 51150107 is a prime.

It is a super-3 number, since 3×51152155³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51152159) 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 23 ways as a sum of consecutive naturals, for example, 763432 + ... + 763498.

It is an arithmetic number, because the mean of its divisors is an integer number (2706858).

Almost surely, 2^51152155 is an apocalyptic number.

51152155 is a deficient number, since it is larger than the sum of its proper divisors (13812437).

51152155 is an equidigital number, since it uses as much as digits as its factorization.

51152155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235 (or 168 counting only the distinct ones).

The product of its digits is 1250, while the sum is 25.

The square root of 51152155 is about 7152.0734755734. The cubic root of 51152155 is about 371.2114056325.

The spelling of 51152155 in words is "fifty-one million, one hundred fifty-two thousand, one hundred fifty-five".