51402055 has 8 divisors (see below), whose sum is σ = 61722000. Its totient is φ = 41095296.

The previous prime is 51402041. The next prime is 51402187. The reversal of 51402055 is 55020415.

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 51402055 - 2⁷ = 51401927 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 10671 + ... + 14719.

It is an arithmetic number, because the mean of its divisors is an integer number (7715250).

Almost surely, 2^51402055 is an apocalyptic number.

51402055 is a deficient number, since it is larger than the sum of its proper divisors (10319945).

51402055 is a wasteful number, since it uses less digits than its factorization.

51402055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6593.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 51402055 is about 7169.5226479871. The cubic root of 51402055 is about 371.8149323219.

The spelling of 51402055 in words is "fifty-one million, four hundred two thousand, fifty-five".