215407925233 has 2 divisors, whose sum is σ = 215407925234. Its totient is φ = 215407925232.

The previous prime is 215407925231. The next prime is 215407925269. The reversal of 215407925233 is 332529704512.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109979783424 + 105428141809 = 331632^2 + 324697^2 .

It is a cyclic number.

It is not a de Polignac number, because 215407925233 - 2¹ = 215407925231 is a prime.

Together with 215407925231, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 215407925233.

It is not a weakly prime, because it can be changed into another prime (215407925231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107703962616 + 107703962617.

It is an arithmetic number, because the mean of its divisors is an integer number (107703962617).

Almost surely, 2^215407925233 is an apocalyptic number.

It is an amenable number.

215407925233 is a deficient number, since it is larger than the sum of its proper divisors (1).

215407925233 is an equidigital number, since it uses as much as digits as its factorization.

215407925233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 453600, while the sum is 43.

The spelling of 215407925233 in words is "two hundred fifteen billion, four hundred seven million, nine hundred twenty-five thousand, two hundred thirty-three".