1355050220 has 12 divisors (see below), whose sum is σ = 2845605504. Its totient is φ = 542020080.

The previous prime is 1355050219. The next prime is 1355050231. The reversal of 1355050220 is 220505531.

It is a super-2 number, since 2×1355050220² = 3672322197444096800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33876236 + ... + 33876275.

It is an arithmetic number, because the mean of its divisors is an integer number (237133792).

Almost surely, 2^1355050220 is an apocalyptic number.

1355050220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1355050220 is an abundant number, since it is smaller than the sum of its proper divisors (1490555284).

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

1355050220 is a wasteful number, since it uses less digits than its factorization.

1355050220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67752520 (or 67752518 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 1355050220 is about 36811.0067778647. The cubic root of 1355050220 is about 1106.5858953404.

Adding to 1355050220 its reverse (220505531), we get a palindrome (1575555751).

The spelling of 1355050220 in words is "one billion, three hundred fifty-five million, fifty thousand, two hundred twenty".