249785377 has 2 divisors, whose sum is σ = 249785378. Its totient is φ = 249785376.

The previous prime is 249785357. The next prime is 249785399. The reversal of 249785377 is 773587942.

249785377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 247401441 + 2383936 = 15729^2 + 1544^2 .

It is a cyclic number.

It is not a de Polignac number, because 249785377 - 2¹⁵ = 249752609 is a prime.

It is not a weakly prime, because it can be changed into another prime (249785357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124892688 + 124892689.

It is an arithmetic number, because the mean of its divisors is an integer number (124892689).

Almost surely, 2^249785377 is an apocalyptic number.

It is an amenable number.

249785377 is a deficient number, since it is larger than the sum of its proper divisors (1).

249785377 is an equidigital number, since it uses as much as digits as its factorization.

249785377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2963520, while the sum is 52.

The square root of 249785377 is about 15804.5998683927. The cubic root of 249785377 is about 629.7802013118.

The spelling of 249785377 in words is "two hundred forty-nine million, seven hundred eighty-five thousand, three hundred seventy-seven".