249795530 has 16 divisors (see below), whose sum is σ = 451989504. Its totient is φ = 99394320.

The previous prime is 249795529. The next prime is 249795541. The reversal of 249795530 is 35597942.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63482 + ... + 67301.

It is an arithmetic number, because the mean of its divisors is an integer number (28249344).

Almost surely, 2^249795530 is an apocalyptic number.

249795530 is a deficient number, since it is larger than the sum of its proper divisors (202193974).

249795530 is a wasteful number, since it uses less digits than its factorization.

249795530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130981.

The product of its (nonzero) digits is 340200, while the sum is 44.

The square root of 249795530 is about 15804.9210690848. The cubic root of 249795530 is about 629.7887340661.

The spelling of 249795530 in words is "two hundred forty-nine million, seven hundred ninety-five thousand, five hundred thirty".