51410978 has 4 divisors (see below), whose sum is σ = 77116470. Its totient is φ = 25705488.

The previous prime is 51410969. The next prime is 51410993. The reversal of 51410978 is 87901415.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 47789569 + 3621409 = 6913^2 + 1903^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12852743 + ... + 12852746.

Almost surely, 2^51410978 is an apocalyptic number.

51410978 is a deficient number, since it is larger than the sum of its proper divisors (25705492).

51410978 is a wasteful number, since it uses less digits than its factorization.

51410978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25705491.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 51410978 is about 7170.1449078802. The cubic root of 51410978 is about 371.8364458112.

The spelling of 51410978 in words is "fifty-one million, four hundred ten thousand, nine hundred seventy-eight".