1255453650 has 108 divisors (see below), whose sum is σ = 3707657226. Its totient is φ = 304339200.

The previous prime is 1255453649. The next prime is 1255453673. The reversal of 1255453650 is 563545521.

1255453650 is a `hidden beast` number, since 1 + 2 + 554 + 53 + 6 + 50 = 666.

1255453650 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 1180128609 + 75325041 = 34353^2 + 8679^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 42922 + ... + 65978.

Almost surely, 2^1255453650 is an apocalyptic number.

1255453650 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 1255453650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1853828613).

1255453650 is an abundant number, since it is smaller than the sum of its proper divisors (2452203576).

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

1255453650 is a wasteful number, since it uses less digits than its factorization.

1255453650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23097 (or 23078 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The square root of 1255453650 is about 35432.3813763625. The cubic root of 1255453650 is about 1078.7816765654.

The spelling of 1255453650 in words is "one billion, two hundred fifty-five million, four hundred fifty-three thousand, six hundred fifty".