55709004 has 24 divisors (see below), whose sum is σ = 139987120. Its totient is φ = 17141184.

The previous prime is 55708993. The next prime is 55709009. The reversal of 55709004 is 40090755.

It is not an unprimeable number, because it can be changed into a prime (55709009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178399 + ... + 178710.

Almost surely, 2^55709004 is an apocalyptic number.

It is an amenable number.

55709004 is an abundant number, since it is smaller than the sum of its proper divisors (84278116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55709004 is a wasteful number, since it uses less digits than its factorization.

55709004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357129 (or 357127 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 55709004 is about 7463.8464614433. The cubic root of 55709004 is about 381.9224004724.

Adding to 55709004 its reverse (40090755), we get a palindrome (95799759).

The spelling of 55709004 in words is "fifty-five million, seven hundred nine thousand, four".