75252945 has 8 divisors (see below), whose sum is σ = 120404736. Its totient is φ = 40134896.

The previous prime is 75252937. The next prime is 75252949. The reversal of 75252945 is 54925257.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 75252945 - 2³ = 75252937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75252949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2508417 + ... + 2508446.

It is an arithmetic number, because the mean of its divisors is an integer number (15050592).

Almost surely, 2^75252945 is an apocalyptic number.

It is an amenable number.

75252945 is a deficient number, since it is larger than the sum of its proper divisors (45151791).

75252945 is a wasteful number, since it uses less digits than its factorization.

75252945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5016871.

The product of its digits is 126000, while the sum is 39.

The square root of 75252945 is about 8674.8455317660. The cubic root of 75252945 is about 422.1898941725.

The spelling of 75252945 in words is "seventy-five million, two hundred fifty-two thousand, nine hundred forty-five".