66552054 has 16 divisors (see below), whose sum is σ = 133209792. Its totient is φ = 22166408.

The previous prime is 66552043. The next prime is 66552067. The reversal of 66552054 is 45025566.

It is a happy number.

It is a Curzon number.

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, 5497 + ... + 12779.

It is an arithmetic number, because the mean of its divisors is an integer number (8325612).

Almost surely, 2^66552054 is an apocalyptic number.

66552054 is an abundant number, since it is smaller than the sum of its proper divisors (66657738).

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

66552054 is a wasteful number, since it uses less digits than its factorization.

66552054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8811.

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

The square root of 66552054 is about 8157.9442263355. The cubic root of 66552054 is about 405.2476339539.

The spelling of 66552054 in words is "sixty-six million, five hundred fifty-two thousand, fifty-four".