55503142 has 8 divisors (see below), whose sum is σ = 87636600. Its totient is φ = 26290944.

The previous prime is 55503121. The next prime is 55503143. The reversal of 55503142 is 24130555.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55503143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 730267 + ... + 730342.

It is an arithmetic number, because the mean of its divisors is an integer number (10954575).

Almost surely, 2^55503142 is an apocalyptic number.

55503142 is a deficient number, since it is larger than the sum of its proper divisors (32133458).

55503142 is a wasteful number, since it uses less digits than its factorization.

55503142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460630.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 55503142 is about 7450.0430871237. The cubic root of 55503142 is about 381.4513793407.

Adding to 55503142 its reverse (24130555), we get a palindrome (79633697).

The spelling of 55503142 in words is "fifty-five million, five hundred three thousand, one hundred forty-two".