55452642 has 16 divisors (see below), whose sum is σ = 126748992. Its totient is φ = 15843600.

The previous prime is 55452641. The next prime is 55452653. The reversal of 55452642 is 24625455.

55452642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (55452641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 660109 + ... + 660192.

It is an arithmetic number, because the mean of its divisors is an integer number (7921812).

Almost surely, 2^55452642 is an apocalyptic number.

55452642 is an abundant number, since it is smaller than the sum of its proper divisors (71296350).

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

55452642 is a wasteful number, since it uses less digits than its factorization.

55452642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320313.

The product of its digits is 48000, while the sum is 33.

The square root of 55452642 is about 7446.6530736969. The cubic root of 55452642 is about 381.3356553222.

The spelling of 55452642 in words is "fifty-five million, four hundred fifty-two thousand, six hundred forty-two".