55409492 has 6 divisors (see below), whose sum is σ = 96966618. Its totient is φ = 27704744.

The previous prime is 55409489. The next prime is 55409503. The reversal of 55409492 is 29490455.

It can be written as a sum of positive squares in only one way, i.e., 51897616 + 3511876 = 7204^2 + 1874^2 .

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, 6926183 + ... + 6926190.

It is an arithmetic number, because the mean of its divisors is an integer number (16161103).

Almost surely, 2^55409492 is an apocalyptic number.

It is an amenable number.

55409492 is a deficient number, since it is larger than the sum of its proper divisors (41557126).

55409492 is a wasteful number, since it uses less digits than its factorization.

55409492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13852377 (or 13852375 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 55409492 is about 7443.7552350947. The cubic root of 55409492 is about 381.2367186272.

The spelling of 55409492 in words is "fifty-five million, four hundred nine thousand, four hundred ninety-two".