51473533 has 2 divisors, whose sum is σ = 51473534. Its totient is φ = 51473532.

The previous prime is 51473483. The next prime is 51473551. The reversal of 51473533 is 33537415.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42341049 + 9132484 = 6507^2 + 3022^2 .

It is a cyclic number.

It is not a de Polignac number, because 51473533 - 2¹⁷ = 51342461 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51473495 and 51473504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51470533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25736766 + 25736767.

It is an arithmetic number, because the mean of its divisors is an integer number (25736767).

Almost surely, 2^51473533 is an apocalyptic number.

It is an amenable number.

51473533 is a deficient number, since it is larger than the sum of its proper divisors (1).

51473533 is an equidigital number, since it uses as much as digits as its factorization.

51473533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18900, while the sum is 31.

The square root of 51473533 is about 7174.5057669501. The cubic root of 51473533 is about 371.9871970196.

It can be divided in two parts, 514 and 73533, that added together give a palindrome (74047).

The spelling of 51473533 in words is "fifty-one million, four hundred seventy-three thousand, five hundred thirty-three".