550001142 has 48 divisors (see below), whose sum is σ = 1230269040. Its totient is φ = 177465600.

The previous prime is 550001131. The next prime is 550001143. The reversal of 550001142 is 241100055.

550001142 is a `hidden beast` number, since 550 + 0 + 0 + 114 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550001143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 93834 + ... + 99522.

It is an arithmetic number, because the mean of its divisors is an integer number (25630605).

Almost surely, 2^550001142 is an apocalyptic number.

550001142 is an abundant number, since it is smaller than the sum of its proper divisors (680267898).

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

550001142 is a wasteful number, since it uses less digits than its factorization.

550001142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5869 (or 5866 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 550001142 is about 23452.1031466263. The cubic root of 550001142 is about 819.3218376699.

Adding to 550001142 its reverse (241100055), we get a palindrome (791101197).

The spelling of 550001142 in words is "five hundred fifty million, one thousand, one hundred forty-two".