375506775 has 36 divisors (see below), whose sum is σ = 768659632. Its totient is φ = 171659520.

The previous prime is 375506731. The next prime is 375506779. The reversal of 375506775 is 577605573.

375506775 is a `hidden beast` number, since 3 + 75 + 506 + 7 + 75 = 666.

It is not a de Polignac number, because 375506775 - 2⁷ = 375506647 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 375506775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (375506779) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 117634 + ... + 120783.

Almost surely, 2^375506775 is an apocalyptic number.

375506775 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

375506775 is an abundant number, since it is smaller than the sum of its proper divisors (393152857).

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

375506775 is a wasteful number, since it uses less digits than its factorization.

375506775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238440 (or 238432 counting only the distinct ones).

The product of its (nonzero) digits is 771750, while the sum is 45.

The square root of 375506775 is about 19377.9971875320. The cubic root of 375506775 is about 721.4494816109.

The spelling of 375506775 in words is "three hundred seventy-five million, five hundred six thousand, seven hundred seventy-five".