55142202 has 8 divisors (see below), whose sum is σ = 110284416. Its totient is φ = 18380732.

The previous prime is 55142189. The next prime is 55142239. The reversal of 55142202 is 20224155.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

55142202 is an admirable 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, 4595178 + ... + 4595189.

It is an arithmetic number, because the mean of its divisors is an integer number (13785552).

Almost surely, 2^55142202 is an apocalyptic number.

55142202 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55142202 is a wasteful number, since it uses less digits than its factorization.

55142202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9190372.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 55142202 is about 7425.7795550366. The cubic root of 55142202 is about 380.6227139835.

Adding to 55142202 its reverse (20224155), we get a palindrome (75366357).

The spelling of 55142202 in words is "fifty-five million, one hundred forty-two thousand, two hundred two".