51265632451 has 8 divisors (see below), whose sum is σ = 55935073584. Its totient is φ = 46597679520.

The previous prime is 51265632373. The next prime is 51265632469. The reversal of 51265632451 is 15423656215.

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

It is a cyclic number.

It is not a de Polignac number, because 51265632451 - 2⁷ = 51265632323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51265632491) 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, 299400 + ... + 438373.

It is an arithmetic number, because the mean of its divisors is an integer number (6991884198).

Almost surely, 2^51265632451 is an apocalyptic number.

51265632451 is a deficient number, since it is larger than the sum of its proper divisors (4669441133).

51265632451 is a wasteful number, since it uses less digits than its factorization.

51265632451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744101.

The product of its digits is 216000, while the sum is 40.

The spelling of 51265632451 in words is "fifty-one billion, two hundred sixty-five million, six hundred thirty-two thousand, four hundred fifty-one".