55138095 has 24 divisors (see below), whose sum is σ = 100604400. Its totient is φ = 27858816.

The previous prime is 55138093. The next prime is 55138099. The reversal of 55138095 is 59083155.

It is a happy number.

It is not a de Polignac number, because 55138095 - 2¹ = 55138093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55138091) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31390 + ... + 33099.

It is an arithmetic number, because the mean of its divisors is an integer number (4191850).

Almost surely, 2^55138095 is an apocalyptic number.

55138095 is a deficient number, since it is larger than the sum of its proper divisors (45466305).

55138095 is a wasteful number, since it uses less digits than its factorization.

55138095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64519 (or 64516 counting only the distinct ones).

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

The square root of 55138095 is about 7425.5030132645. The cubic root of 55138095 is about 380.6132641354.

The spelling of 55138095 in words is "fifty-five million, one hundred thirty-eight thousand, ninety-five".