55551142 has 8 divisors (see below), whose sum is σ = 83361600. Its totient is φ = 27763944.

The previous prime is 55551137. The next prime is 55551151. The reversal of 55551142 is 24115555.

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

It is a self number, because there is not a number n which added to its sum of digits gives 55551142.

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, 2584 + ... + 10852.

It is an arithmetic number, because the mean of its divisors is an integer number (10420200).

Almost surely, 2^55551142 is an apocalyptic number.

55551142 is a deficient number, since it is larger than the sum of its proper divisors (27810458).

55551142 is a wasteful number, since it uses less digits than its factorization.

55551142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11630.

The product of its digits is 5000, while the sum is 28.

The square root of 55551142 is about 7453.2638488115. The cubic root of 55551142 is about 381.5613093970.

Adding to 55551142 its reverse (24115555), we get a palindrome (79666697).

The spelling of 55551142 in words is "fifty-five million, five hundred fifty-one thousand, one hundred forty-two".