75450272 has 12 divisors (see below), whose sum is σ = 148542786. Its totient is φ = 37725120.

The previous prime is 75450269. The next prime is 75450283. The reversal of 75450272 is 27205457.

It can be written as a sum of positive squares in only one way, i.e., 75411856 + 38416 = 8684^2 + 196^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 2357821 = 75450272 / (7 + 5 + 4 + 5 + 0 + 2 + 7 + 2).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1178879 + ... + 1178942.

Almost surely, 2^75450272 is an apocalyptic number.

It is an amenable number.

75450272 is a deficient number, since it is larger than the sum of its proper divisors (73092514).

75450272 is a wasteful number, since it uses less digits than its factorization.

75450272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2357831 (or 2357823 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 75450272 is about 8686.2116023040. The cubic root of 75450272 is about 422.5585918298.

The spelling of 75450272 in words is "seventy-five million, four hundred fifty thousand, two hundred seventy-two".