53415505237 has 2 divisors, whose sum is σ = 53415505238. Its totient is φ = 53415505236.

The previous prime is 53415505229. The next prime is 53415505267. The reversal of 53415505237 is 73250551435.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42153838596 + 11261666641 = 205314^2 + 106121^2 .

It is a cyclic number.

It is not a de Polignac number, because 53415505237 - 2³ = 53415505229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53415505237.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53415505267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26707752618 + 26707752619.

It is an arithmetic number, because the mean of its divisors is an integer number (26707752619).

Almost surely, 2^53415505237 is an apocalyptic number.

It is an amenable number.

53415505237 is a deficient number, since it is larger than the sum of its proper divisors (1).

53415505237 is an equidigital number, since it uses as much as digits as its factorization.

53415505237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 315000, while the sum is 40.

The spelling of 53415505237 in words is "fifty-three billion, four hundred fifteen million, five hundred five thousand, two hundred thirty-seven".