2050155257 has 2 divisors, whose sum is σ = 2050155258. Its totient is φ = 2050155256.

The previous prime is 2050155253. The next prime is 2050155313. The reversal of 2050155257 is 7525510502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1572994921 + 477160336 = 39661^2 + 21844^2 .

It is a cyclic number.

It is not a de Polignac number, because 2050155257 - 2² = 2050155253 is a prime.

It is not a weakly prime, because it can be changed into another prime (2050155253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1025077628 + 1025077629.

It is an arithmetic number, because the mean of its divisors is an integer number (1025077629).

Almost surely, 2^2050155257 is an apocalyptic number.

It is an amenable number.

2050155257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2050155257 is an equidigital number, since it uses as much as digits as its factorization.

2050155257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17500, while the sum is 32.

The square root of 2050155257 is about 45278.6401849702. The cubic root of 2050155257 is about 1270.3661615987.

Adding to 2050155257 its reverse (7525510502), we get a palindrome (9575665759).

The spelling of 2050155257 in words is "two billion, fifty million, one hundred fifty-five thousand, two hundred fifty-seven".