55134709 has 16 divisors (see below), whose sum is σ = 66640896. Its totient is φ = 44611200.

The previous prime is 55134701. The next prime is 55134721. The reversal of 55134709 is 90743155.

It is a cyclic number.

It is not a de Polignac number, because 55134709 - 2³ = 55134701 is a prime.

It is a super-2 number, since 2×55134709² = 6079672273029362, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55134701) 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, 5799 + ... + 11995.

It is an arithmetic number, because the mean of its divisors is an integer number (4165056).

Almost surely, 2^55134709 is an apocalyptic number.

It is an amenable number.

55134709 is a deficient number, since it is larger than the sum of its proper divisors (11506187).

55134709 is a wasteful number, since it uses less digits than its factorization.

55134709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6276.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 55134709 is about 7425.2750117420. The cubic root of 55134709 is about 380.6054728924.

The spelling of 55134709 in words is "fifty-five million, one hundred thirty-four thousand, seven hundred nine".