53137809091 has 2 divisors, whose sum is σ = 53137809092. Its totient is φ = 53137809090.

The previous prime is 53137809019. The next prime is 53137809097. The reversal of 53137809091 is 19090873135.

It is a happy number.

Together with previous prime (53137809019) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53137809091 - 2¹³ = 53137800899 is a prime.

It is not a weakly prime, because it can be changed into another prime (53137809097) 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 as a sum of consecutive naturals, namely, 26568904545 + 26568904546.

It is an arithmetic number, because the mean of its divisors is an integer number (26568904546).

Almost surely, 2^53137809091 is an apocalyptic number.

53137809091 is a deficient number, since it is larger than the sum of its proper divisors (1).

53137809091 is an equidigital number, since it uses as much as digits as its factorization.

53137809091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 204120, while the sum is 46.

The spelling of 53137809091 in words is "fifty-three billion, one hundred thirty-seven million, eight hundred nine thousand, ninety-one".