51343252905 has 16 divisors (see below), whose sum is σ = 93884805504. Its totient is φ = 23471201280.

The previous prime is 51343252903. The next prime is 51343252951. The reversal of 51343252905 is 50925234315.

It is not a de Polignac number, because 51343252905 - 2¹ = 51343252903 is a prime.

It is a super-2 number, since 2×51343252905² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51343252903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244491576 + ... + 244491785.

It is an arithmetic number, because the mean of its divisors is an integer number (5867800344).

Almost surely, 2^51343252905 is an apocalyptic number.

It is an amenable number.

51343252905 is a deficient number, since it is larger than the sum of its proper divisors (42541552599).

51343252905 is a wasteful number, since it uses less digits than its factorization.

51343252905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488983376.

The product of its (nonzero) digits is 162000, while the sum is 39.

The spelling of 51343252905 in words is "fifty-one billion, three hundred forty-three million, two hundred fifty-two thousand, nine hundred five".