1553042442 has 32 divisors (see below), whose sum is σ = 3598445952. Its totient is φ = 437647104.

The previous prime is 1553042431. The next prime is 1553042453. The reversal of 1553042442 is 2442403551.

It is an interprime number because it is at equal distance from previous prime (1553042431) and next prime (1553042453).

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, 250203 + ... + 256334.

It is an arithmetic number, because the mean of its divisors is an integer number (112451436).

Almost surely, 2^1553042442 is an apocalyptic number.

1553042442 is an abundant number, since it is smaller than the sum of its proper divisors (2045403510).

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

1553042442 is a wasteful number, since it uses less digits than its factorization.

1553042442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506622.

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 1553042442 is about 39408.6594798656. The cubic root of 1553042442 is about 1158.0512369907.

Adding to 1553042442 its reverse (2442403551), we get a palindrome (3995445993).

The spelling of 1553042442 in words is "one billion, five hundred fifty-three million, forty-two thousand, four hundred forty-two".