55156547 has 6 divisors (see below), whose sum is σ = 55431612. Its totient is φ = 54882672.

The previous prime is 55156531. The next prime is 55156561. The reversal of 55156547 is 74565155.

It is not a de Polignac number, because 55156547 - 2⁴ = 55156531 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55156547.

It is not an unprimeable number, because it can be changed into a prime (55156147) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 97688 + ... + 98250.

It is an arithmetic number, because the mean of its divisors is an integer number (9238602).

Almost surely, 2^55156547 is an apocalyptic number.

55156547 is a deficient number, since it is larger than the sum of its proper divisors (275065).

55156547 is an frugal number, since it uses more digits than its factorization.

55156547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189 (or 876 counting only the distinct ones).

The product of its digits is 105000, while the sum is 38.

The square root of 55156547 is about 7426.7453840831. The cubic root of 55156547 is about 380.6557168937.

The spelling of 55156547 in words is "fifty-five million, one hundred fifty-six thousand, five hundred forty-seven".