49661407 has 2 divisors, whose sum is σ = 49661408. Its totient is φ = 49661406.

The previous prime is 49661357. The next prime is 49661441. The reversal of 49661407 is 70416694.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49661407 - 2⁷ = 49661279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49661467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24830703 + 24830704.

It is an arithmetic number, because the mean of its divisors is an integer number (24830704).

Almost surely, 2^49661407 is an apocalyptic number.

49661407 is a deficient number, since it is larger than the sum of its proper divisors (1).

49661407 is an equidigital number, since it uses as much as digits as its factorization.

49661407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 49661407 is about 7047.0850001969. The cubic root of 49661407 is about 367.5696741113.

The spelling of 49661407 in words is "forty-nine million, six hundred sixty-one thousand, four hundred seven".