1250455155 has 16 divisors (see below), whose sum is σ = 2001365664. Its totient is φ = 666696960.

The previous prime is 1250455109. The next prime is 1250455159. The reversal of 1250455155 is 5515540521.

It is not a de Polignac number, because 1250455155 - 2¹⁰ = 1250454131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1250455159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43095 + ... + 66015.

It is an arithmetic number, because the mean of its divisors is an integer number (125085354).

Almost surely, 2^1250455155 is an apocalyptic number.

1250455155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1250455155 is a deficient number, since it is larger than the sum of its proper divisors (750910509).

1250455155 is a wasteful number, since it uses less digits than its factorization.

1250455155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26566.

The product of its (nonzero) digits is 25000, while the sum is 33.

The square root of 1250455155 is about 35361.7753372197. The cubic root of 1250455155 is about 1077.3480760460.

Adding to 1250455155 its reverse (5515540521), we get a palindrome (6765995676).

The spelling of 1250455155 in words is "one billion, two hundred fifty million, four hundred fifty-five thousand, one hundred fifty-five".