54666642 has 16 divisors (see below), whose sum is σ = 110195712. Its totient is φ = 18078480.

The previous prime is 54666641. The next prime is 54666659. The reversal of 54666642 is 24666645.

It is a self number, because there is not a number n which added to its sum of digits gives 54666642.

It is not an unprimeable number, because it can be changed into a prime (54666641) 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, 35109 + ... + 36632.

It is an arithmetic number, because the mean of its divisors is an integer number (6887232).

Almost surely, 2^54666642 is an apocalyptic number.

54666642 is an abundant number, since it is smaller than the sum of its proper divisors (55529070).

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

54666642 is a wasteful number, since it uses less digits than its factorization.

54666642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71873.

The product of its digits is 207360, while the sum is 39.

The square root of 54666642 is about 7393.6893361839. The cubic root of 54666642 is about 379.5253584545.

The spelling of 54666642 in words is "fifty-four million, six hundred sixty-six thousand, six hundred forty-two".