75476257 has 4 divisors (see below), whose sum is σ = 75722416. Its totient is φ = 75230100.

The previous prime is 75476249. The next prime is 75476273. The reversal of 75476257 is 75267457.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75267457 = 2287 ⋅32911.

It is a cyclic number.

It is not a de Polignac number, because 75476257 - 2³ = 75476249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75476207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122619 + ... + 123232.

It is an arithmetic number, because the mean of its divisors is an integer number (18930604).

Almost surely, 2^75476257 is an apocalyptic number.

It is an amenable number.

75476257 is a deficient number, since it is larger than the sum of its proper divisors (246159).

75476257 is a wasteful number, since it uses less digits than its factorization.

75476257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246158.

The product of its digits is 411600, while the sum is 43.

The square root of 75476257 is about 8687.7072349383. The cubic root of 75476257 is about 422.6070958508.

The spelling of 75476257 in words is "seventy-five million, four hundred seventy-six thousand, two hundred fifty-seven".