55142032 has 20 divisors (see below), whose sum is σ = 116550576. Its totient is φ = 25064480.

The previous prime is 55142023. The next prime is 55142051. The reversal of 55142032 is 23024155.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 55141994 and 55142012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156478 + ... + 156829.

Almost surely, 2^55142032 is an apocalyptic number.

It is an amenable number.

55142032 is an abundant number, since it is smaller than the sum of its proper divisors (61408544).

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

55142032 is a wasteful number, since it uses less digits than its factorization.

55142032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313326 (or 313320 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 55142032 is about 7425.7681084181. The cubic root of 55142032 is about 380.6223228376.

Adding to 55142032 its reverse (23024155), we get a palindrome (78166187).

The spelling of 55142032 in words is "fifty-five million, one hundred forty-two thousand, thirty-two".