1020255355 has 16 divisors (see below), whose sum is σ = 1400218560. Its totient is φ = 699098112.

The previous prime is 1020255349. The next prime is 1020255361. The reversal of 1020255355 is 5535520201.

It is an interprime number because it is at equal distance from previous prime (1020255349) and next prime (1020255361).

It is a cyclic number.

It is not a de Polignac number, because 1020255355 - 2³ = 1020255347 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42327 + ... + 61903.

It is an arithmetic number, because the mean of its divisors is an integer number (87513660).

Almost surely, 2^1020255355 is an apocalyptic number.

1020255355 is a deficient number, since it is larger than the sum of its proper divisors (379963205).

1020255355 is a wasteful number, since it uses less digits than its factorization.

1020255355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21078.

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 1020255355 is about 31941.4363327637. The cubic root of 1020255355 is about 1006.7067045584.

Adding to 1020255355 its reverse (5535520201), we get a palindrome (6555775556).

The spelling of 1020255355 in words is "one billion, twenty million, two hundred fifty-five thousand, three hundred fifty-five".