75320272 has 10 divisors (see below), whose sum is σ = 145933058. Its totient is φ = 37660128.

The previous prime is 75320249. The next prime is 75320281. The reversal of 75320272 is 27202357.

It can be written as a sum of positive squares in only one way, i.e., 67502656 + 7817616 = 8216^2 + 2796^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 75320272.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2353743 + ... + 2353774.

Almost surely, 2^75320272 is an apocalyptic number.

It is an amenable number.

75320272 is a deficient number, since it is larger than the sum of its proper divisors (70612786).

75320272 is a wasteful number, since it uses less digits than its factorization.

75320272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4707525 (or 4707519 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 75320272 is about 8678.7252520171. The cubic root of 75320272 is about 422.3157643571.

It can be divided in two parts, 753 and 20272, that added together give a square (21025 = 145²).

The spelling of 75320272 in words is "seventy-five million, three hundred twenty thousand, two hundred seventy-two".