42650500253 has 2 divisors, whose sum is σ = 42650500254. Its totient is φ = 42650500252.

The previous prime is 42650500231. The next prime is 42650500261. The reversal of 42650500253 is 35200505624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32703828964 + 9946671289 = 180842^2 + 99733^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42650500253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42650500153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21325250126 + 21325250127.

It is an arithmetic number, because the mean of its divisors is an integer number (21325250127).

Almost surely, 2^42650500253 is an apocalyptic number.

It is an amenable number.

42650500253 is a deficient number, since it is larger than the sum of its proper divisors (1).

42650500253 is an equidigital number, since it uses as much as digits as its factorization.

42650500253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36000, while the sum is 32.

The spelling of 42650500253 in words is "forty-two billion, six hundred fifty million, five hundred thousand, two hundred fifty-three".