51253550401 has 8 divisors (see below), whose sum is σ = 52311019520. Its totient is φ = 50206298688.

The previous prime is 51253550389. The next prime is 51253550407. The reversal of 51253550401 is 10405535215.

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-51253550401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51253550407) 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, 2544216 + ... + 2564281.

It is an arithmetic number, because the mean of its divisors is an integer number (6538877440).

Almost surely, 2^51253550401 is an apocalyptic number.

It is an amenable number.

51253550401 is a deficient number, since it is larger than the sum of its proper divisors (1057469119).

51253550401 is a wasteful number, since it uses less digits than its factorization.

51253550401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5108703.

The product of its (nonzero) digits is 15000, while the sum is 31.

The spelling of 51253550401 in words is "fifty-one billion, two hundred fifty-three million, five hundred fifty thousand, four hundred one".