45705251 has 2 divisors, whose sum is σ = 45705252. Its totient is φ = 45705250.

The previous prime is 45705221. The next prime is 45705269. The reversal of 45705251 is 15250754.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45705251 - 2²² = 41510947 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (45705211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22852625 + 22852626.

It is an arithmetic number, because the mean of its divisors is an integer number (22852626).

Almost surely, 2^45705251 is an apocalyptic number.

45705251 is a deficient number, since it is larger than the sum of its proper divisors (1).

45705251 is an equidigital number, since it uses as much as digits as its factorization.

45705251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 45705251 is about 6760.5658786821. The cubic root of 45705251 is about 357.5378570111.

The spelling of 45705251 in words is "forty-five million, seven hundred five thousand, two hundred fifty-one".