1255780054 has 16 divisors (see below), whose sum is σ = 1951479936. Its totient is φ = 605433600.

The previous prime is 1255780051. The next prime is 1255780063. The reversal of 1255780054 is 4500875521.

It is a junction number, because it is equal to n+sod(n) for n = 1255779995 and 1255780022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255780051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19387 + ... + 53734.

It is an arithmetic number, because the mean of its divisors is an integer number (121967496).

Almost surely, 2^1255780054 is an apocalyptic number.

1255780054 is a deficient number, since it is larger than the sum of its proper divisors (695699882).

1255780054 is a wasteful number, since it uses less digits than its factorization.

1255780054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73431.

The product of its (nonzero) digits is 56000, while the sum is 37.

The square root of 1255780054 is about 35436.9870897626. The cubic root of 1255780054 is about 1078.8751588810.

The spelling of 1255780054 in words is "one billion, two hundred fifty-five million, seven hundred eighty thousand, fifty-four".