75489550 has 24 divisors (see below), whose sum is σ = 140801256. Its totient is φ = 30111840.

The previous prime is 75489541. The next prime is 75489551. The reversal of 75489550 is 5598457.

It is a junction number, because it is equal to n+sod(n) for n = 75489497 and 75489506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75489551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17949 + ... + 21751.

It is an arithmetic number, because the mean of its divisors is an integer number (5866719).

Almost surely, 2^75489550 is an apocalyptic number.

75489550 is a deficient number, since it is larger than the sum of its proper divisors (65311706).

75489550 is a wasteful number, since it uses less digits than its factorization.

75489550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4212 (or 4207 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 43.

The square root of 75489550 is about 8688.4722477545. The cubic root of 75489550 is about 422.6319044753.

The spelling of 75489550 in words is "seventy-five million, four hundred eighty-nine thousand, five hundred fifty".