55342742 has 16 divisors (see below), whose sum is σ = 102171552. Its totient is φ = 21893760.

The previous prime is 55342723. The next prime is 55342747. The reversal of 55342742 is 24724355.

It is a junction number, because it is equal to n+sod(n) for n = 55342699 and 55342708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55342747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151859 + ... + 152222.

It is an arithmetic number, because the mean of its divisors is an integer number (6385722).

Almost surely, 2^55342742 is an apocalyptic number.

55342742 is a deficient number, since it is larger than the sum of its proper divisors (46828810).

55342742 is a wasteful number, since it uses less digits than its factorization.

55342742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304103.

The product of its digits is 33600, while the sum is 32.

The square root of 55342742 is about 7439.2702599113. The cubic root of 55342742 is about 381.0835693171.

The spelling of 55342742 in words is "fifty-five million, three hundred forty-two thousand, seven hundred forty-two".