51651055 has 8 divisors (see below), whose sum is σ = 62434512. Its totient is φ = 41018688.

The previous prime is 51651023. The next prime is 51651109. The reversal of 51651055 is 55015615.

51651055 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 51651055 - 2⁵ = 51651023 is a prime.

It is a super-2 number, since 2×51651055² = 5335662965226050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent 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, 37017 + ... + 38386.

It is an arithmetic number, because the mean of its divisors is an integer number (7804314).

Almost surely, 2^51651055 is an apocalyptic number.

51651055 is a deficient number, since it is larger than the sum of its proper divisors (10783457).

51651055 is a wasteful number, since it uses less digits than its factorization.

51651055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75545.

The product of its (nonzero) digits is 3750, while the sum is 28.

The square root of 51651055 is about 7186.8668416773. The cubic root of 51651055 is about 372.4143430209.

The spelling of 51651055 in words is "fifty-one million, six hundred fifty-one thousand, fifty-five".