53121604519 has 2 divisors, whose sum is σ = 53121604520. Its totient is φ = 53121604518.

The previous prime is 53121604507. The next prime is 53121604567. The reversal of 53121604519 is 91540612135.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53121604519 - 2⁷ = 53121604391 is a prime.

It is a super-2 number, since 2×53121604519² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53121604819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26560802259 + 26560802260.

It is an arithmetic number, because the mean of its divisors is an integer number (26560802260).

Almost surely, 2^53121604519 is an apocalyptic number.

53121604519 is a deficient number, since it is larger than the sum of its proper divisors (1).

53121604519 is an equidigital number, since it uses as much as digits as its factorization.

53121604519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 37.

The spelling of 53121604519 in words is "fifty-three billion, one hundred twenty-one million, six hundred four thousand, five hundred nineteen".