51354155 has 8 divisors (see below), whose sum is σ = 61845984. Its totient is φ = 40936000.

The previous prime is 51354143. The next prime is 51354179. The reversal of 51354155 is 55145315.

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

It is not a de Polignac number, because 51354155 - 2⁶ = 51354091 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16871 + ... + 19680.

It is an arithmetic number, because the mean of its divisors is an integer number (7730748).

Almost surely, 2^51354155 is an apocalyptic number.

51354155 is a deficient number, since it is larger than the sum of its proper divisors (10491829).

51354155 is a wasteful number, since it uses less digits than its factorization.

51354155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36837.

The product of its digits is 7500, while the sum is 29.

The square root of 51354155 is about 7166.1813401560. The cubic root of 51354155 is about 371.6994021140.

The spelling of 51354155 in words is "fifty-one million, three hundred fifty-four thousand, one hundred fifty-five".