60861257 has 2 divisors, whose sum is σ = 60861258. Its totient is φ = 60861256.

The previous prime is 60861247. The next prime is 60861293. The reversal of 60861257 is 75216806.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56715961 + 4145296 = 7531^2 + 2036^2 .

It is a cyclic number.

It is not a de Polignac number, because 60861257 - 2¹⁴ = 60844873 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (60861217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30430628 + 30430629.

It is an arithmetic number, because the mean of its divisors is an integer number (30430629).

Almost surely, 2^60861257 is an apocalyptic number.

It is an amenable number.

60861257 is a deficient number, since it is larger than the sum of its proper divisors (1).

60861257 is an equidigital number, since it uses as much as digits as its factorization.

60861257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 60861257 is about 7801.3625092031. The cubic root of 60861257 is about 393.3510428842.

The spelling of 60861257 in words is "sixty million, eight hundred sixty-one thousand, two hundred fifty-seven".