55136045 has 8 divisors (see below), whose sum is σ = 66585624. Its totient is φ = 43827264.

The previous prime is 55136027. The next prime is 55136057. The reversal of 55136045 is 54063155.

It can be written as a sum of positive squares in 4 ways, for example, as 9721924 + 45414121 = 3118^2 + 6739^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55136045 - 2²⁴ = 38358829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55135999 and 55136017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34334 + ... + 35903.

It is an arithmetic number, because the mean of its divisors is an integer number (8323203).

Almost surely, 2^55136045 is an apocalyptic number.

It is an amenable number.

55136045 is a deficient number, since it is larger than the sum of its proper divisors (11449579).

55136045 is a wasteful number, since it uses less digits than its factorization.

55136045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70399.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 55136045 is about 7425.3649741949. The cubic root of 55136045 is about 380.6085470890.

The spelling of 55136045 in words is "fifty-five million, one hundred thirty-six thousand, forty-five".