53213532157 has 2 divisors, whose sum is σ = 53213532158. Its totient is φ = 53213532156.

The previous prime is 53213532133. The next prime is 53213532179. The reversal of 53213532157 is 75123531235.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46109402361 + 7104129796 = 214731^2 + 84286^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53213532157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53213535157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26606766078 + 26606766079.

It is an arithmetic number, because the mean of its divisors is an integer number (26606766079).

Almost surely, 2^53213532157 is an apocalyptic number.

It is an amenable number.

53213532157 is a deficient number, since it is larger than the sum of its proper divisors (1).

53213532157 is an equidigital number, since it uses as much as digits as its factorization.

53213532157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94500, while the sum is 37.

The spelling of 53213532157 in words is "fifty-three billion, two hundred thirteen million, five hundred thirty-two thousand, one hundred fifty-seven".