51400753 has 2 divisors, whose sum is σ = 51400754. Its totient is φ = 51400752.

The previous prime is 51400747. The next prime is 51400799. The reversal of 51400753 is 35700415.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49463089 + 1937664 = 7033^2 + 1392^2 .

It is a cyclic number.

It is not a de Polignac number, because 51400753 - 2⁹ = 51400241 is a prime.

It is a super-3 number, since 3×51400753³ (a number of 24 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (51400253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25700376 + 25700377.

It is an arithmetic number, because the mean of its divisors is an integer number (25700377).

Almost surely, 2^51400753 is an apocalyptic number.

It is an amenable number.

51400753 is a deficient number, since it is larger than the sum of its proper divisors (1).

51400753 is an equidigital number, since it uses as much as digits as its factorization.

51400753 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 51400753 is about 7169.4318463878. The cubic root of 51400753 is about 371.8117929718.

The spelling of 51400753 in words is "fifty-one million, four hundred thousand, seven hundred fifty-three".