75257020 has 24 divisors (see below), whose sum is σ = 158485824. Its totient is φ = 30017856.

The previous prime is 75257003. The next prime is 75257027. The reversal of 75257020 is 2075257.

It is a self number, because there is not a number n which added to its sum of digits gives 75257020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75257027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2214 + ... + 12466.

It is an arithmetic number, because the mean of its divisors is an integer number (6603576).

Almost surely, 2^75257020 is an apocalyptic number.

It is an amenable number.

75257020 is an abundant number, since it is smaller than the sum of its proper divisors (83228804).

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

75257020 is a wasteful number, since it uses less digits than its factorization.

75257020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10629 (or 10627 counting only the distinct ones).

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

The square root of 75257020 is about 8675.0804030856. The cubic root of 75257020 is about 422.1975146617.

The spelling of 75257020 in words is "seventy-five million, two hundred fifty-seven thousand, twenty".