51552155 has 8 divisors (see below), whose sum is σ = 62273184. Its totient is φ = 40968000.

The previous prime is 51552133. The next prime is 51552191. The reversal of 51552155 is 55125515.

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

It is not a de Polignac number, because 51552155 - 2¹⁰ = 51551131 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, 33386 + ... + 34895.

It is an arithmetic number, because the mean of its divisors is an integer number (7784148).

Almost surely, 2^51552155 is an apocalyptic number.

51552155 is a deficient number, since it is larger than the sum of its proper divisors (10721029).

51552155 is a wasteful number, since it uses less digits than its factorization.

51552155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68437.

The product of its digits is 6250, while the sum is 29.

The square root of 51552155 is about 7179.9829386984. The cubic root of 51552155 is about 372.1764949478.

The spelling of 51552155 in words is "fifty-one million, five hundred fifty-two thousand, one hundred fifty-five".