75270250 has 64 divisors (see below), whose sum is σ = 155810304. Its totient is φ = 27000000.

The previous prime is 75270197. The next prime is 75270259. The reversal of 75270250 is 5207257.

It is a super-2 number, since 2×75270250² = 11331221070125000, which contains 22 as substring.

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

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 277615 + ... + 277885.

It is an arithmetic number, because the mean of its divisors is an integer number (2434536).

Almost surely, 2^75270250 is an apocalyptic number.

75270250 is an abundant number, since it is smaller than the sum of its proper divisors (80540054).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75270250 is a wasteful number, since it uses less digits than its factorization.

75270250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400 (or 390 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 28.

The square root of 75270250 is about 8675.8428985315. The cubic root of 75270250 is about 422.2222536421. Note that the first 4 decimals are identical.

The spelling of 75270250 in words is "seventy-five million, two hundred seventy thousand, two hundred fifty".