75561672 has 32 divisors (see below), whose sum is σ = 189298080. Its totient is φ = 25134720.

The previous prime is 75561649. The next prime is 75561677. The reversal of 75561672 is 27616557.

It is a self number, because there is not a number n which added to its sum of digits gives 75561672.

It is not an unprimeable number, because it can be changed into a prime (75561677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9483 + ... + 15525.

It is an arithmetic number, because the mean of its divisors is an integer number (5915565).

Almost surely, 2^75561672 is an apocalyptic number.

It is an amenable number.

75561672 is an abundant number, since it is smaller than the sum of its proper divisors (113736408).

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

75561672 is a wasteful number, since it uses less digits than its factorization.

75561672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6573 (or 6569 counting only the distinct ones).

The product of its digits is 88200, while the sum is 39.

The square root of 75561672 is about 8692.6216988892. The cubic root of 75561672 is about 422.7664544727.

The spelling of 75561672 in words is "seventy-five million, five hundred sixty-one thousand, six hundred seventy-two".