53091880749 has 12 divisors (see below), whose sum is σ = 76690330236. Its totient is φ = 35393637312.

The previous prime is 53091880691. The next prime is 53091880763. The reversal of 53091880749 is 94708819035.

It can be written as a sum of positive squares in 2 ways, for example, as 22007722500 + 31084158249 = 148350^2 + 176307^2 .

It is not a de Polignac number, because 53091880749 - 2¹³ = 53091872557 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53091880695 and 53091880704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53091880249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 490969 + ... + 589265.

It is an arithmetic number, because the mean of its divisors is an integer number (6390860853).

Almost surely, 2^53091880749 is an apocalyptic number.

It is an amenable number.

53091880749 is a deficient number, since it is larger than the sum of its proper divisors (23598449487).

53091880749 is a wasteful number, since it uses less digits than its factorization.

53091880749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158316 (or 158313 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 53091880749 in words is "fifty-three billion, ninety-one million, eight hundred eighty thousand, seven hundred forty-nine".