53215225525457 has 2 divisors, whose sum is σ = 53215225525458. Its totient is φ = 53215225525456.

The previous prime is 53215225525393. The next prime is 53215225525481. The reversal of 53215225525457 is 75452552251235.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31789287963601 + 21425937561856 = 5638199^2 + 4628816^2 .

It is a cyclic number.

It is not a de Polignac number, because 53215225525457 - 2⁶ = 53215225525393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53215225525399 and 53215225525408.

It is not a weakly prime, because it can be changed into another prime (53215225522457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26607612762728 + 26607612762729.

It is an arithmetic number, because the mean of its divisors is an integer number (26607612762729).

Almost surely, 2^{53215225525457} is an apocalyptic number.

It is an amenable number.

53215225525457 is a deficient number, since it is larger than the sum of its proper divisors (1).

53215225525457 is an equidigital number, since it uses as much as digits as its factorization.

53215225525457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21000000, while the sum is 53.

The spelling of 53215225525457 in words is "fifty-three trillion, two hundred fifteen billion, two hundred twenty-five million, five hundred twenty-five thousand, four hundred fifty-seven".