1355550042 has 32 divisors (see below), whose sum is σ = 3380073984. Its totient is φ = 352090800.

The previous prime is 1355550013. The next prime is 1355550043. The reversal of 1355550042 is 2400555531.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1355549991 and 1355550009.

It is not an unprimeable number, because it can be changed into a prime (1355550043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1466584 + ... + 1467507.

It is an arithmetic number, because the mean of its divisors is an integer number (105627312).

Almost surely, 2^1355550042 is an apocalyptic number.

1355550042 is an abundant number, since it is smaller than the sum of its proper divisors (2024523942).

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

1355550042 is a wasteful number, since it uses less digits than its factorization.

1355550042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2934114.

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 1355550042 is about 36817.7951811349. The cubic root of 1355550042 is about 1106.7219365430.

The spelling of 1355550042 in words is "one billion, three hundred fifty-five million, five hundred fifty thousand, forty-two".