51775453 has 2 divisors, whose sum is σ = 51775454. Its totient is φ = 51775452.

The previous prime is 51775439. The next prime is 51775457. The reversal of 51775453 is 35457715.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44582329 + 7193124 = 6677^2 + 2682^2 .

It is a cyclic number.

It is not a de Polignac number, because 51775453 - 2¹⁷ = 51644381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51775457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25887726 + 25887727.

It is an arithmetic number, because the mean of its divisors is an integer number (25887727).

Almost surely, 2^51775453 is an apocalyptic number.

It is an amenable number.

51775453 is a deficient number, since it is larger than the sum of its proper divisors (1).

51775453 is an equidigital number, since it uses as much as digits as its factorization.

51775453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 73500, while the sum is 37.

The square root of 51775453 is about 7195.5161732846. The cubic root of 51775453 is about 372.7130813968.

The spelling of 51775453 in words is "fifty-one million, seven hundred seventy-five thousand, four hundred fifty-three".