55135605 has 16 divisors (see below), whose sum is σ = 100819584. Its totient is φ = 25204800.

The previous prime is 55135571. The next prime is 55135609. The reversal of 55135605 is 50653155.

It is not a de Polignac number, because 55135605 - 2⁶ = 55135541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55135609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262446 + ... + 262655.

It is an arithmetic number, because the mean of its divisors is an integer number (6301224).

Almost surely, 2^55135605 is an apocalyptic number.

It is an amenable number.

55135605 is a deficient number, since it is larger than the sum of its proper divisors (45683979).

55135605 is a wasteful number, since it uses less digits than its factorization.

55135605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525116.

The product of its (nonzero) digits is 11250, while the sum is 30.

The square root of 55135605 is about 7425.3353459625. The cubic root of 55135605 is about 380.6075346345.

The spelling of 55135605 in words is "fifty-five million, one hundred thirty-five thousand, six hundred five".