75272250 has 32 divisors (see below), whose sum is σ = 187881408. Its totient is φ = 20072400.

The previous prime is 75272221. The next prime is 75272251. The reversal of 75272250 is 5227257.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (75272251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49432 + ... + 50931.

It is an arithmetic number, because the mean of its divisors is an integer number (5871294).

Almost surely, 2^75272250 is an apocalyptic number.

75272250 is an abundant number, since it is smaller than the sum of its proper divisors (112609158).

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

75272250 is a wasteful number, since it uses less digits than its factorization.

75272250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100383 (or 100373 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 30.

The square root of 75272250 is about 8675.9581603417. The cubic root of 75272250 is about 422.2259932207.

The spelling of 75272250 in words is "seventy-five million, two hundred seventy-two thousand, two hundred fifty".