75257030 has 16 divisors (see below), whose sum is σ = 140134320. Its totient is φ = 29064672.

The previous prime is 75257027. The next prime is 75257071. The reversal of 75257030 is 3075257.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a junction number, because it is equal to n+sod(n) for n = 75256984 and 75257002.

It is a congruent number.

It is an unprimeable number.

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, 129464 + ... + 130043.

It is an arithmetic number, because the mean of its divisors is an integer number (8758395).

Almost surely, 2^75257030 is an apocalyptic number.

75257030 is a deficient number, since it is larger than the sum of its proper divisors (64877290).

75257030 is a wasteful number, since it uses less digits than its factorization.

75257030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259543.

The product of its (nonzero) digits is 7350, while the sum is 29.

The square root of 75257030 is about 8675.0809794491. The cubic root of 75257030 is about 422.1975333620.

The spelling of 75257030 in words is "seventy-five million, two hundred fifty-seven thousand, thirty".