75454542 has 12 divisors (see below), whose sum is σ = 163484880. Its totient is φ = 25151508.

The previous prime is 75454541. The next prime is 75454571. The reversal of 75454542 is 24545457.

It is a happy number.

75454542 is a `hidden beast` number, since 75 + 4 + 545 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 75454497 and 75454506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75454541) 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, 2095942 + ... + 2095977.

It is an arithmetic number, because the mean of its divisors is an integer number (13623740).

Almost surely, 2^75454542 is an apocalyptic number.

75454542 is an abundant number, since it is smaller than the sum of its proper divisors (88030338).

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

75454542 is a wasteful number, since it uses less digits than its factorization.

75454542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4191927 (or 4191924 counting only the distinct ones).

The product of its digits is 112000, while the sum is 36.

The square root of 75454542 is about 8686.4573906743. The cubic root of 75454542 is about 422.5665630454.

Adding to 75454542 its reverse (24545457), we get a palindrome (99999999).

The spelling of 75454542 in words is "seventy-five million, four hundred fifty-four thousand, five hundred forty-two".