555551042 has 4 divisors (see below), whose sum is σ = 833326566. Its totient is φ = 277775520.

The previous prime is 555551033. The next prime is 555551063. The reversal of 555551042 is 240155555.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240155555 = 5 ⋅48031111.

It can be written as a sum of positive squares in only one way, i.e., 554084521 + 1466521 = 23539^2 + 1211^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138887759 + ... + 138887762.

Almost surely, 2^555551042 is an apocalyptic number.

555551042 is a deficient number, since it is larger than the sum of its proper divisors (277775524).

555551042 is a wasteful number, since it uses less digits than its factorization.

555551042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277775523.

The product of its (nonzero) digits is 25000, while the sum is 32.

The square root of 555551042 is about 23570.1302923849. The cubic root of 555551042 is about 822.0684651604.

The spelling of 555551042 in words is "five hundred fifty-five million, five hundred fifty-one thousand, forty-two".