51978094 has 8 divisors (see below), whose sum is σ = 89105328. Its totient is φ = 22276320.

The previous prime is 51977983. The next prime is 51978127. The reversal of 51978094 is 49087915.

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

It is a self number, because there is not a number n which added to its sum of digits gives 51978094.

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, 1856347 + ... + 1856374.

It is an arithmetic number, because the mean of its divisors is an integer number (11138166).

Almost surely, 2^51978094 is an apocalyptic number.

51978094 is a deficient number, since it is larger than the sum of its proper divisors (37127234).

51978094 is a wasteful number, since it uses less digits than its factorization.

51978094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3712730.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 51978094 is about 7209.5834831147. The cubic root of 51978094 is about 373.1986952499.

The spelling of 51978094 in words is "fifty-one million, nine hundred seventy-eight thousand, ninety-four".