1553212442 has 8 divisors (see below), whose sum is σ = 2331455616. Its totient is φ = 776060572.

The previous prime is 1553212393. The next prime is 1553212447. The reversal of 1553212442 is 2442123551.

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

It is not an unprimeable number, because it can be changed into a prime (1553212447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269258 + ... + 274965.

It is an arithmetic number, because the mean of its divisors is an integer number (291431952).

Almost surely, 2^1553212442 is an apocalyptic number.

1553212442 is a deficient number, since it is larger than the sum of its proper divisors (778243174).

1553212442 is a wasteful number, since it uses less digits than its factorization.

1553212442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545652.

The product of its digits is 9600, while the sum is 29.

The square root of 1553212442 is about 39410.8163072018. The cubic root of 1553212442 is about 1158.0934898663.

Adding to 1553212442 its reverse (2442123551), we get a palindrome (3995335993).

The spelling of 1553212442 in words is "one billion, five hundred fifty-three million, two hundred twelve thousand, four hundred forty-two".