55142932 has 12 divisors (see below), whose sum is σ = 103923316. Its totient is φ = 25450560.

The previous prime is 55142929. The next prime is 55142933. The reversal of 55142932 is 23924155.

It can be written as a sum of positive squares in 2 ways, for example, as 36168196 + 18974736 = 6014^2 + 4356^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55142894 and 55142903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55142933) by changing a digit.

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, 530169 + ... + 530272.

Almost surely, 2^55142932 is an apocalyptic number.

55142932 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

55142932 is a deficient number, since it is larger than the sum of its proper divisors (48780384).

55142932 is a wasteful number, since it uses less digits than its factorization.

55142932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060458 (or 1060456 counting only the distinct ones).

The product of its digits is 10800, while the sum is 31.

The square root of 55142932 is about 7425.8287079625. The cubic root of 55142932 is about 380.6243936006.

The spelling of 55142932 in words is "fifty-five million, one hundred forty-two thousand, nine hundred thirty-two".