32505157 has 2 divisors, whose sum is σ = 32505158. Its totient is φ = 32505156.

The previous prime is 32505113. The next prime is 32505163. The reversal of 32505157 is 75150523.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32421636 + 83521 = 5694^2 + 289^2 .

It is a cyclic number.

It is not a de Polignac number, because 32505157 - 2¹¹ = 32503109 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32505107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16252578 + 16252579.

It is an arithmetic number, because the mean of its divisors is an integer number (16252579).

Almost surely, 2^32505157 is an apocalyptic number.

It is an amenable number.

32505157 is a deficient number, since it is larger than the sum of its proper divisors (1).

32505157 is an equidigital number, since it uses as much as digits as its factorization.

32505157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 32505157 is about 5701.3294063753. The cubic root of 32505157 is about 319.1420933194.

The spelling of 32505157 in words is "thirty-two million, five hundred five thousand, one hundred fifty-seven".