53533465129 has 9 divisors (see below), whose sum is σ = 54439802469. Its totient is φ = 52641984960.

The previous prime is 53533465123. The next prime is 53533465151. The reversal of 53533465129 is 92156433535.

The square root of 53533465129 is 231373.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 35402304025 + 18131161104 = 188155^2 + 134652^2 .

It is not a de Polignac number, because 53533465129 - 2²¹ = 53531367977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53533465123) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 14111857 + ... + 14115649.

It is an arithmetic number, because the mean of its divisors is an integer number (6048866941).

Almost surely, 2^53533465129 is an apocalyptic number.

53533465129 is the 231373-rd square number.

53533465129 is the 115687-th centered octagonal number.

It is an amenable number.

53533465129 is a deficient number, since it is larger than the sum of its proper divisors (906337340).

53533465129 is an frugal number, since it uses more digits than its factorization.

53533465129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7708 (or 3854 counting only the distinct ones).

The product of its digits is 1458000, while the sum is 46.

The spelling of 53533465129 in words is "fifty-three billion, five hundred thirty-three million, four hundred sixty-five thousand, one hundred twenty-nine".