75454500 has 192 divisors, whose sum is σ = 254741760. Its totient is φ = 17152000.

The previous prime is 75454481. The next prime is 75454501. The reversal of 75454500 is 545457.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (75454501) 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 63 ways as a sum of consecutive naturals, for example, 280366 + ... + 280634.

It is an arithmetic number, because the mean of its divisors is an integer number (1326780).

Almost surely, 2^75454500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75454500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127370880).

75454500 is an abundant number, since it is smaller than the sum of its proper divisors (179287260).

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

75454500 is a wasteful number, since it uses less digits than its factorization.

75454500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319 (or 307 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 30.

The square root of 75454500 is about 8686.4549731176. The cubic root of 75454500 is about 422.5664846415.

Subtracting from 75454500 its sum of digits (30), we obtain a triangular number (75454470 = T₁₂₂₈₄).

Adding to 75454500 its reverse (545457), we get a palindrome (75999957).

The spelling of 75454500 in words is "seventy-five million, four hundred fifty-four thousand, five hundred".