75125280 has 48 divisors (see below), whose sum is σ = 236646144. Its totient is φ = 20033280.

The previous prime is 75125279. The next prime is 75125293. The reversal of 75125280 is 8252157.

It is a tau number, because it is divible by the number of its divisors (48).

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77776 + ... + 78735.

It is an arithmetic number, because the mean of its divisors is an integer number (4930128).

Almost surely, 2^75125280 is an apocalyptic number.

It is an amenable number.

75125280 is an abundant number, since it is smaller than the sum of its proper divisors (161520864).

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

75125280 is a wasteful number, since it uses less digits than its factorization.

75125280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156529 (or 156521 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 75125280 is about 8667.4840640177. The cubic root of 75125280 is about 421.9510136830.

The spelling of 75125280 in words is "seventy-five million, one hundred twenty-five thousand, two hundred eighty".