51463394 has 8 divisors (see below), whose sum is σ = 78252780. Its totient is φ = 25379136.

The previous prime is 51463393. The next prime is 51463417. The reversal of 51463394 is 49336415.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 45387169 + 6076225 = 6737^2 + 2465^2 .

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

It is not an unprimeable number, because it can be changed into a prime (51463393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176099 + ... + 176390.

Almost surely, 2^51463394 is an apocalyptic number.

51463394 is a deficient number, since it is larger than the sum of its proper divisors (26789386).

51463394 is a wasteful number, since it uses less digits than its factorization.

51463394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352564.

The product of its digits is 38880, while the sum is 35.

The square root of 51463394 is about 7173.7991329560. The cubic root of 51463394 is about 371.9627713544.

The spelling of 51463394 in words is "fifty-one million, four hundred sixty-three thousand, three hundred ninety-four".