1255505544 has 48 divisors (see below), whose sum is σ = 3421220400. Its totient is φ = 415930464.

The previous prime is 1255505519. The next prime is 1255505551. The reversal of 1255505544 is 4455055521.

1255505544 is a `hidden beast` number, since 1 + 2 + 55 + 50 + 554 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1255505499 and 1255505508.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41754 + ... + 65225.

It is an arithmetic number, because the mean of its divisors is an integer number (71275425).

Almost surely, 2^1255505544 is an apocalyptic number.

It is an amenable number.

1255505544 is an abundant number, since it is smaller than the sum of its proper divisors (2165714856).

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

1255505544 is a wasteful number, since it uses less digits than its factorization.

1255505544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107154 (or 107147 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 36.

The square root of 1255505544 is about 35433.1136650450. The cubic root of 1255505544 is about 1078.7965401235.

The spelling of 1255505544 in words is "one billion, two hundred fifty-five million, five hundred five thousand, five hundred forty-four".