5581942 has 4 divisors (see below), whose sum is σ = 8372916. Its totient is φ = 2790970.

The previous prime is 5581937. The next prime is 5581963. The reversal of 5581942 is 2491855.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 5581898 and 5581907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1395484 + ... + 1395487.

It is an arithmetic number, because the mean of its divisors is an integer number (2093229).

Almost surely, 2^5581942 is an apocalyptic number.

5581942 is a deficient number, since it is larger than the sum of its proper divisors (2790974).

5581942 is a wasteful number, since it uses less digits than its factorization.

5581942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2790973.

The product of its digits is 14400, while the sum is 34.

The square root of 5581942 is about 2362.6133835226. The cubic root of 5581942 is about 177.3897165890.

It can be divided in two parts, 558 and 1942, that added together give a square (2500 = 50²).

The spelling of 5581942 in words is "five million, five hundred eighty-one thousand, nine hundred forty-two".