51457078 has 8 divisors (see below), whose sum is σ = 79847280. Its totient is φ = 24841320.

The previous prime is 51457069. The next prime is 51457097. The reversal of 51457078 is 87075415.

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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 443538 + ... + 443653.

It is an arithmetic number, because the mean of its divisors is an integer number (9980910).

Almost surely, 2^51457078 is an apocalyptic number.

51457078 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

51457078 is a deficient number, since it is larger than the sum of its proper divisors (28390202).

51457078 is a wasteful number, since it uses less digits than its factorization.

51457078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887222.

The product of its (nonzero) digits is 39200, while the sum is 37.

The square root of 51457078 is about 7173.3589063980. The cubic root of 51457078 is about 371.9475539814.

The spelling of 51457078 in words is "fifty-one million, four hundred fifty-seven thousand, seventy-eight".