55051839 has 8 divisors (see below), whose sum is σ = 81558320. Its totient is φ = 36701208.

The previous prime is 55051817. The next prime is 55051879. The reversal of 55051839 is 93815055.

It is a happy number.

It is not a de Polignac number, because 55051839 - 2⁸ = 55051583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55051879) 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, 1019452 + ... + 1019505.

It is an arithmetic number, because the mean of its divisors is an integer number (10194790).

Almost surely, 2^55051839 is an apocalyptic number.

55051839 is a deficient number, since it is larger than the sum of its proper divisors (26506481).

55051839 is a wasteful number, since it uses less digits than its factorization.

55051839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2038966 (or 2038960 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The square root of 55051839 is about 7419.6926486210. The cubic root of 55051839 is about 380.4146881052.

The spelling of 55051839 in words is "fifty-five million, fifty-one thousand, eight hundred thirty-nine".