51455078 has 8 divisors (see below), whose sum is σ = 81244920. Its totient is φ = 24373440.

The previous prime is 51455069. The next prime is 51455081. The reversal of 51455078 is 87055415.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 677003 + ... + 677078.

It is an arithmetic number, because the mean of its divisors is an integer number (10155615).

Almost surely, 2^51455078 is an apocalyptic number.

51455078 is a deficient number, since it is larger than the sum of its proper divisors (29789842).

51455078 is a wasteful number, since it uses less digits than its factorization.

51455078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354102.

The product of its (nonzero) digits is 28000, while the sum is 35.

The square root of 51455078 is about 7173.2195003360. The cubic root of 51455078 is about 371.9427350477.

The spelling of 51455078 in words is "fifty-one million, four hundred fifty-five thousand, seventy-eight".