75045457 has 8 divisors (see below), whose sum is σ = 76995072. Its totient is φ = 73101600.

The previous prime is 75045431. The next prime is 75045473. The reversal of 75045457 is 75454057.

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 75045457 - 2¹⁵ = 75012689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75045857) 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, 39708 + ... + 41554.

It is an arithmetic number, because the mean of its divisors is an integer number (9624384).

Almost surely, 2^75045457 is an apocalyptic number.

It is an amenable number.

75045457 is a deficient number, since it is larger than the sum of its proper divisors (1949615).

75045457 is a wasteful number, since it uses less digits than its factorization.

75045457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2879.

The product of its (nonzero) digits is 98000, while the sum is 37.

The square root of 75045457 is about 8662.8781014164. The cubic root of 75045457 is about 421.8015152629.

The spelling of 75045457 in words is "seventy-five million, forty-five thousand, four hundred fifty-seven".