1553055042 has 128 divisors (see below), whose sum is σ = 3970695168. Its totient is φ = 393307200.

The previous prime is 1553055029. The next prime is 1553055089. The reversal of 1553055042 is 2405503551.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4054783 + ... + 4055165.

It is an arithmetic number, because the mean of its divisors is an integer number (31021056).

Almost surely, 2^1553055042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1553055042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1985347584).

1553055042 is an abundant number, since it is smaller than the sum of its proper divisors (2417640126).

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

1553055042 is a wasteful number, since it uses less digits than its factorization.

1553055042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604.

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

The square root of 1553055042 is about 39408.8193428831. The cubic root of 1553055042 is about 1158.0543687802.

Adding to 1553055042 its reverse (2405503551), we get a palindrome (3958558593).

The spelling of 1553055042 in words is "one billion, five hundred fifty-three million, fifty-five thousand, forty-two".