53751997399 has 2 divisors, whose sum is σ = 53751997400. Its totient is φ = 53751997398.

The previous prime is 53751997309. The next prime is 53751997513. The reversal of 53751997399 is 99379915735.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53751997399 - 2¹⁷ = 53751866327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53751997309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26875998699 + 26875998700.

It is an arithmetic number, because the mean of its divisors is an integer number (26875998700).

Almost surely, 2^53751997399 is an apocalyptic number.

53751997399 is a deficient number, since it is larger than the sum of its proper divisors (1).

53751997399 is an equidigital number, since it uses as much as digits as its factorization.

53751997399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72335025, while the sum is 67.

The spelling of 53751997399 in words is "fifty-three billion, seven hundred fifty-one million, nine hundred ninety-seven thousand, three hundred ninety-nine".