1255164550 has 24 divisors (see below), whose sum is σ = 2378660256. Its totient is φ = 492591840.

The previous prime is 1255164523. The next prime is 1255164551. The reversal of 1255164550 is 554615521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255164551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 234174 + ... + 239473.

It is an arithmetic number, because the mean of its divisors is an integer number (99110844).

Almost surely, 2^1255164550 is an apocalyptic number.

1255164550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1255164550 is a deficient number, since it is larger than the sum of its proper divisors (1123495706).

1255164550 is a wasteful number, since it uses less digits than its factorization.

1255164550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473712 (or 473707 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 34.

The square root of 1255164550 is about 35428.3015398706. The cubic root of 1255164550 is about 1078.6988646073.

The spelling of 1255164550 in words is "one billion, two hundred fifty-five million, one hundred sixty-four thousand, five hundred fifty".