51484997 has 2 divisors, whose sum is σ = 51484998. Its totient is φ = 51484996.

The previous prime is 51484991. The next prime is 51485009. The reversal of 51484997 is 79948415.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29964676 + 21520321 = 5474^2 + 4639^2 .

It is a cyclic number.

It is not a de Polignac number, because 51484997 - 2¹⁶ = 51419461 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51484991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25742498 + 25742499.

It is an arithmetic number, because the mean of its divisors is an integer number (25742499).

Almost surely, 2^51484997 is an apocalyptic number.

It is an amenable number.

51484997 is a deficient number, since it is larger than the sum of its proper divisors (1).

51484997 is an equidigital number, since it uses as much as digits as its factorization.

51484997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 47.

The square root of 51484997 is about 7175.3046625213. The cubic root of 51484997 is about 372.0148108529.

The spelling of 51484997 in words is "fifty-one million, four hundred eighty-four thousand, nine hundred ninety-seven".