75270251 has 8 divisors (see below), whose sum is σ = 86084064. Its totient is φ = 64471680.

The previous prime is 75270197. The next prime is 75270259. The reversal of 75270251 is 15207257.

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

It is not a de Polignac number, because 75270251 - 2⁶ = 75270187 is a prime.

It is a super-2 number, since 2×75270251² = 11331221371206002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75270259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10241 + ... + 15981.

It is an arithmetic number, because the mean of its divisors is an integer number (10760508).

Almost surely, 2^75270251 is an apocalyptic number.

75270251 is a deficient number, since it is larger than the sum of its proper divisors (10813813).

75270251 is a wasteful number, since it uses less digits than its factorization.

75270251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7621.

The product of its (nonzero) digits is 4900, while the sum is 29.

The square root of 75270251 is about 8675.8429561628. The cubic root of 75270251 is about 422.2222555119. Note that the first 4 decimals are identical.

The spelling of 75270251 in words is "seventy-five million, two hundred seventy thousand, two hundred fifty-one".