375811911225 has 189 divisors, whose sum is σ = 740497412703. Its totient is φ = 189089419680.

The previous prime is 375811911143. The next prime is 375811911253. The reversal of 375811911225 is 522119118573.

The square root of 375811911225 is 613035.

It is a perfect power (a square), and thus also a powerful number.

375811911225 is a `hidden beast` number, since 37 + 581 + 1 + 9 + 1 + 12 + 25 = 666.

It can be written as a sum of positive squares in only one way, i.e., 135292288041 + 240519623184 = 367821^2 + 490428^2 .

It is not a de Polignac number, because 375811911225 - 2²³ = 375803522617 is a prime.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 188 ways as a sum of consecutive naturals, for example, 1572434656 + ... + 1572434894.

Almost surely, 2^375811911225 is an apocalyptic number.

375811911225 is the 613035-th square number.

375811911225 is the 306518-th centered octagonal number.

It is an amenable number.

375811911225 is a deficient number, since it is larger than the sum of its proper divisors (364685501478).

375811911225 is an frugal number, since it uses more digits than its factorization.

375811911225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544 (or 266 counting only the distinct ones).

The product of its digits is 151200, while the sum is 45.

The spelling of 375811911225 in words is "three hundred seventy-five billion, eight hundred eleven million, nine hundred eleven thousand, two hundred twenty-five".