1255540045 has 16 divisors (see below), whose sum is σ = 1588631040. Its totient is φ = 949955904.

The previous prime is 1255540043. The next prime is 1255540063. The reversal of 1255540045 is 5400455521.

It is a cyclic number.

It is not a de Polignac number, because 1255540045 - 2¹ = 1255540043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1255539989 and 1255540016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255540043) 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, 46779 + ... + 68551.

It is an arithmetic number, because the mean of its divisors is an integer number (99289440).

Almost surely, 2^1255540045 is an apocalyptic number.

It is an amenable number.

1255540045 is a deficient number, since it is larger than the sum of its proper divisors (333090995).

1255540045 is a wasteful number, since it uses less digits than its factorization.

1255540045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22404.

The product of its (nonzero) digits is 20000, while the sum is 31.

The square root of 1255540045 is about 35433.6005085568. The cubic root of 1255540045 is about 1078.8064217256.

Adding to 1255540045 its reverse (5400455521), we get a palindrome (6655995566).

The spelling of 1255540045 in words is "one billion, two hundred fifty-five million, five hundred forty thousand, forty-five".