53213112257 has 2 divisors, whose sum is σ = 53213112258. Its totient is φ = 53213112256.

The previous prime is 53213112247. The next prime is 53213112287. The reversal of 53213112257 is 75221131235.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50013060496 + 3200051761 = 223636^2 + 56569^2 .

It is a cyclic number.

It is not a de Polignac number, because 53213112257 - 2²⁴ = 53196335041 is a prime.

It is a super-3 number, since 3×53213112257³ (a number of 33 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (53213112247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26606556128 + 26606556129.

It is an arithmetic number, because the mean of its divisors is an integer number (26606556129).

Almost surely, 2^53213112257 is an apocalyptic number.

It is an amenable number.

53213112257 is a deficient number, since it is larger than the sum of its proper divisors (1).

53213112257 is an equidigital number, since it uses as much as digits as its factorization.

53213112257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12600, while the sum is 32.

The spelling of 53213112257 in words is "fifty-three billion, two hundred thirteen million, one hundred twelve thousand, two hundred fifty-seven".