51957155 has 8 divisors (see below), whose sum is σ = 62420112. Its totient is φ = 41518048.

The previous prime is 51957149. The next prime is 51957173. The reversal of 51957155 is 55175915.

51957155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 51957155 - 2¹² = 51953059 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 752 + ... + 10221.

It is an arithmetic number, because the mean of its divisors is an integer number (7802514).

Almost surely, 2^51957155 is an apocalyptic number.

51957155 is a deficient number, since it is larger than the sum of its proper divisors (10462957).

51957155 is a wasteful number, since it uses less digits than its factorization.

51957155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11925.

The product of its digits is 39375, while the sum is 38.

The square root of 51957155 is about 7208.1311725023. The cubic root of 51957155 is about 373.1485750522.

The spelling of 51957155 in words is "fifty-one million, nine hundred fifty-seven thousand, one hundred fifty-five".