51298047 has 12 divisors (see below), whose sum is σ = 74791080. Its totient is φ = 33878448.

The previous prime is 51298033. The next prime is 51298063. The reversal of 51298047 is 74089215.

It is not a de Polignac number, because 51298047 - 2⁷ = 51297919 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51298447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25672 + ... + 27597.

It is an arithmetic number, because the mean of its divisors is an integer number (6232590).

Almost surely, 2^51298047 is an apocalyptic number.

51298047 is a deficient number, since it is larger than the sum of its proper divisors (23493033).

51298047 is a wasteful number, since it uses less digits than its factorization.

51298047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53382 (or 53379 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 51298047 is about 7162.2654935432. The cubic root of 51298047 is about 371.5639836007.

The spelling of 51298047 in words is "fifty-one million, two hundred ninety-eight thousand, forty-seven".