51512302401 has 8 divisors (see below), whose sum is σ = 78494937024. Its totient is φ = 29435601360.

The previous prime is 51512302397. The next prime is 51512302427. The reversal of 51512302401 is 10420321515.

It is a happy number.

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

It is not a de Polignac number, because 51512302401 - 2² = 51512302397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51512302451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1226483370 + ... + 1226483411.

It is an arithmetic number, because the mean of its divisors is an integer number (9811867128).

Almost surely, 2^51512302401 is an apocalyptic number.

It is an amenable number.

51512302401 is a deficient number, since it is larger than the sum of its proper divisors (26982634623).

51512302401 is a wasteful number, since it uses less digits than its factorization.

51512302401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2452966791.

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 51512302401 its reverse (10420321515), we get a palindrome (61932623916).

The spelling of 51512302401 in words is "fifty-one billion, five hundred twelve million, three hundred two thousand, four hundred one".