215152451253 has 6 divisors (see below), whose sum is σ = 310775762934. Its totient is φ = 143434967496.

The previous prime is 215152451249. The next prime is 215152451317. The reversal of 215152451253 is 352154251512.

215152451253 is a `hidden beast` number, since 2 + 1 + 5 + 1 + 524 + 5 + 125 + 3 = 666.

215152451253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 210711295089 + 4441156164 = 459033^2 + 66642^2 .

It is not a de Polignac number, because 215152451253 - 2² = 215152451249 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215152451233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11952913950 + ... + 11952913967.

It is an arithmetic number, because the mean of its divisors is an integer number (51795960489).

Almost surely, 2^215152451253 is an apocalyptic number.

It is an amenable number.

215152451253 is a deficient number, since it is larger than the sum of its proper divisors (95623311681).

215152451253 is a wasteful number, since it uses less digits than its factorization.

215152451253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23905827923 (or 23905827920 counting only the distinct ones).

The product of its digits is 60000, while the sum is 36.

The spelling of 215152451253 in words is "two hundred fifteen billion, one hundred fifty-two million, four hundred fifty-one thousand, two hundred fifty-three".