1151255050 has 96 divisors (see below), whose sum is σ = 2446718400. Its totient is φ = 399168000.

The previous prime is 1151254997. The next prime is 1151255059. The reversal of 1151255050 is 505521511.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (1151255059) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1419145 + ... + 1419955.

It is an arithmetic number, because the mean of its divisors is an integer number (25486650).

Almost surely, 2^1151255050 is an apocalyptic number.

1151255050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1151255050 is an abundant number, since it is smaller than the sum of its proper divisors (1295463350).

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

1151255050 is a wasteful number, since it uses less digits than its factorization.

1151255050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952 (or 947 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 25.

The square root of 1151255050 is about 33930.1495723199. The cubic root of 1151255050 is about 1048.0705458455.

Adding to 1151255050 its reverse (505521511), we get a palindrome (1656776561).

The spelling of 1151255050 in words is "one billion, one hundred fifty-one million, two hundred fifty-five thousand, fifty".