51404322403 has 8 divisors (see below), whose sum is σ = 58901188608. Its totient is φ = 43945804104.

The previous prime is 51404322379. The next prime is 51404322421. The reversal of 51404322403 is 30422340415.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51404322403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51404320403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9584101 + ... + 9589462.

It is an arithmetic number, because the mean of its divisors is an integer number (7362648576).

Almost surely, 2^51404322403 is an apocalyptic number.

51404322403 is a deficient number, since it is larger than the sum of its proper divisors (7496866205).

51404322403 is a wasteful number, since it uses less digits than its factorization.

51404322403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19173953.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 51404322403 its reverse (30422340415), we get a palindrome (81826662818).

The spelling of 51404322403 in words is "fifty-one billion, four hundred four million, three hundred twenty-two thousand, four hundred three".