1255433020 has 24 divisors (see below), whose sum is σ = 2637180000. Its totient is φ = 502026432.

The previous prime is 1255432991. The next prime is 1255433041. The reversal of 1255433020 is 203345521.

It is a super-2 number, since 2×1255433020² = 3152224135412640800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84081 + ... + 97879.

It is an arithmetic number, because the mean of its divisors is an integer number (109882500).

Almost surely, 2^1255433020 is an apocalyptic number.

1255433020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1255433020 is an abundant number, since it is smaller than the sum of its proper divisors (1381746980).

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

1255433020 is a wasteful number, since it uses less digits than its factorization.

1255433020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18357 (or 18355 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 1255433020 is about 35432.0902572795. The cubic root of 1255433020 is about 1078.7757675757.

Adding to 1255433020 its reverse (203345521), we get a palindrome (1458778541).

The spelling of 1255433020 in words is "one billion, two hundred fifty-five million, four hundred thirty-three thousand, twenty".