1020233555 has 8 divisors (see below), whose sum is σ = 1335578544. Its totient is φ = 741988000.

The previous prime is 1020233549. The next prime is 1020233573. The reversal of 1020233555 is 5553320201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1020233555 - 2⁶ = 1020233491 is a prime.

It is a Duffinian 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, 9274796 + ... + 9274905.

It is an arithmetic number, because the mean of its divisors is an integer number (166947318).

Almost surely, 2^1020233555 is an apocalyptic number.

1020233555 is a deficient number, since it is larger than the sum of its proper divisors (315344989).

1020233555 is a wasteful number, since it uses less digits than its factorization.

1020233555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18549717.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 1020233555 is about 31941.0950814151. The cubic root of 1020233555 is about 1006.6995343395.

Adding to 1020233555 its reverse (5553320201), we get a palindrome (6573553756).

The spelling of 1020233555 in words is "one billion, twenty million, two hundred thirty-three thousand, five hundred fifty-five".