1161500250 has 64 divisors (see below), whose sum is σ = 2992684032. Its totient is φ = 299736000.

The previous prime is 1161500239. The next prime is 1161500273. The reversal of 1161500250 is 520051611.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1729 + ... + 48228.

It is an arithmetic number, because the mean of its divisors is an integer number (46760688).

Almost surely, 2^1161500250 is an apocalyptic number.

1161500250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1161500250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1496342016).

1161500250 is an abundant number, since it is smaller than the sum of its proper divisors (1831183782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1161500250 is a wasteful number, since it uses less digits than its factorization.

1161500250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50008 (or 49998 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 1161500250 is about 34080.7900436595. The cubic root of 1161500250 is about 1051.1703503489.

Adding to 1161500250 its reverse (520051611), we get a palindrome (1681551861).

The spelling of 1161500250 in words is "one billion, one hundred sixty-one million, five hundred thousand, two hundred fifty".