55142204 has 12 divisors (see below), whose sum is σ = 103921944. Its totient is φ = 25450224.

The previous prime is 55142189. The next prime is 55142239. The reversal of 55142204 is 40224155.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 55142204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 530162 + ... + 530265.

It is an arithmetic number, because the mean of its divisors is an integer number (8660162).

Almost surely, 2^55142204 is an apocalyptic number.

It is an amenable number.

55142204 is a deficient number, since it is larger than the sum of its proper divisors (48779740).

55142204 is a wasteful number, since it uses less digits than its factorization.

55142204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060444 (or 1060442 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 55142204 is about 7425.7796897026. The cubic root of 55142204 is about 380.6227185852.

Adding to 55142204 its reverse (40224155), we get a palindrome (95366359).

The spelling of 55142204 in words is "fifty-five million, one hundred forty-two thousand, two hundred four".