54025566 has 16 divisors (see below), whose sum is σ = 123487104. Its totient is φ = 15435864.

The previous prime is 54025561. The next prime is 54025567. The reversal of 54025566 is 66552045.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54025561) 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, 643120 + ... + 643203.

It is an arithmetic number, because the mean of its divisors is an integer number (7717944).

Almost surely, 2^54025566 is an apocalyptic number.

54025566 is an abundant number, since it is smaller than the sum of its proper divisors (69461538).

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

54025566 is a wasteful number, since it uses less digits than its factorization.

54025566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286335.

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 54025566 is about 7350.2085684693. The cubic root of 54025566 is about 378.0359558194.

It can be divided in two parts, 540 and 25566, that added together give a triangular number (26106 = T₂₂₈).

The spelling of 54025566 in words is "fifty-four million, twenty-five thousand, five hundred sixty-six".