55519942 has 8 divisors (see below), whose sum is σ = 83327256. Its totient is φ = 27744192.

The previous prime is 55519927. The next prime is 55519973. The reversal of 55519942 is 24991555.

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

It is a junction number, because it is equal to n+sod(n) for n = 55519895 and 55519904.

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, 2848 + ... + 10915.

It is an arithmetic number, because the mean of its divisors is an integer number (10415907).

Almost surely, 2^55519942 is an apocalyptic number.

55519942 is a deficient number, since it is larger than the sum of its proper divisors (27807314).

55519942 is a wasteful number, since it uses less digits than its factorization.

55519942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15782.

The product of its digits is 81000, while the sum is 40.

The square root of 55519942 is about 7451.1705120739. The cubic root of 55519942 is about 381.4898620673.

The spelling of 55519942 in words is "fifty-five million, five hundred nineteen thousand, nine hundred forty-two".