55162518 has 16 divisors (see below), whose sum is σ = 116814960. Its totient is φ = 17305856.

The previous prime is 55162511. The next prime is 55162531. The reversal of 55162518 is 81526155.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55162511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270303 + ... + 270506.

It is an arithmetic number, because the mean of its divisors is an integer number (7300935).

Almost surely, 2^55162518 is an apocalyptic number.

55162518 is an abundant number, since it is smaller than the sum of its proper divisors (61652442).

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

55162518 is a wasteful number, since it uses less digits than its factorization.

55162518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540831.

The product of its digits is 12000, while the sum is 33.

The square root of 55162518 is about 7427.1473662504. The cubic root of 55162518 is about 380.6694524241.

The spelling of 55162518 in words is "fifty-five million, one hundred sixty-two thousand, five hundred eighteen".