75506400 has 108 divisors (see below), whose sum is σ = 266279832. Its totient is φ = 20133120.

The previous prime is 75506339. The next prime is 75506407. The reversal of 75506400 is 460557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75506407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1957 + ... + 12443.

It is an arithmetic number, because the mean of its divisors is an integer number (2465554).

Almost surely, 2^75506400 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 75506400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133139916).

75506400 is an abundant number, since it is smaller than the sum of its proper divisors (190773432).

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

75506400 is a wasteful number, since it uses less digits than its factorization.

75506400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10513 (or 10497 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 75506400 is about 8689.4418693032. The cubic root of 75506400 is about 422.6633473165.

Adding to 75506400 its reverse (460557), we get a palindrome (75966957).

The spelling of 75506400 in words is "seventy-five million, five hundred six thousand, four hundred".