53387337249 has 15 divisors (see below), whose sum is σ = 79754560963. Its totient is φ = 35590171824.

The previous prime is 53387337247. The next prime is 53387337281. The reversal of 53387337249 is 94273378335.

The square root of 53387337249 is 231057.

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

53387337249 is a `hidden beast` number, since 533 + 8 + 7 + 33 + 72 + 4 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 45209390625 + 8177946624 = 212625^2 + 90432^2 .

It is not a de Polignac number, because 53387337249 - 2¹ = 53387337247 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53387337195 and 53387337204.

It is not an unprimeable number, because it can be changed into a prime (53387337247) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 2066677 + ... + 2092349.

Almost surely, 2^53387337249 is an apocalyptic number.

53387337249 is the 231057-th square number.

53387337249 is the 115529-th centered octagonal number.

It is an amenable number.

53387337249 is a deficient number, since it is larger than the sum of its proper divisors (26367223714).

53387337249 is an frugal number, since it uses more digits than its factorization.

53387337249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51358 (or 25676 counting only the distinct ones).

The product of its digits is 11430720, while the sum is 54.

The spelling of 53387337249 in words is "fifty-three billion, three hundred eighty-seven million, three hundred thirty-seven thousand, two hundred forty-nine".