51853573 has 2 divisors, whose sum is σ = 51853574. Its totient is φ = 51853572.

The previous prime is 51853559. The next prime is 51853609. The reversal of 51853573 is 37535815.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48902049 + 2951524 = 6993^2 + 1718^2 .

It is a cyclic number.

It is not a de Polignac number, because 51853573 - 2¹⁷ = 51722501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51853673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25926786 + 25926787.

It is an arithmetic number, because the mean of its divisors is an integer number (25926787).

Almost surely, 2^51853573 is an apocalyptic number.

It is an amenable number.

51853573 is a deficient number, since it is larger than the sum of its proper divisors (1).

51853573 is an equidigital number, since it uses as much as digits as its factorization.

51853573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63000, while the sum is 37.

The square root of 51853573 is about 7200.9425077555. The cubic root of 51853573 is about 372.9004399016.

The spelling of 51853573 in words is "fifty-one million, eight hundred fifty-three thousand, five hundred seventy-three".