378125558 has 4 divisors (see below), whose sum is σ = 567188340. Its totient is φ = 189062778.

The previous prime is 378125557. The next prime is 378125591. The reversal of 378125558 is 855521873.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 855521873 = 19 ⋅45027467.

It is a super-3 number, since 3×378125558³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378125557) by changing a digit.

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 as a sum of consecutive naturals, namely, 94531388 + ... + 94531391.

It is an arithmetic number, because the mean of its divisors is an integer number (141797085).

Almost surely, 2^378125558 is an apocalyptic number.

378125558 is a deficient number, since it is larger than the sum of its proper divisors (189062782).

378125558 is a wasteful number, since it uses less digits than its factorization.

378125558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189062781.

The product of its digits is 336000, while the sum is 44.

The square root of 378125558 is about 19445.4508304642. The cubic root of 378125558 is about 723.1227266449.

The spelling of 378125558 in words is "three hundred seventy-eight million, one hundred twenty-five thousand, five hundred fifty-eight".