158525838 has 12 divisors (see below), whose sum is σ = 343472688. Its totient is φ = 52841940.

The previous prime is 158525837. The next prime is 158525879. The reversal of 158525838 is 838525851.

158525838 is a `hidden beast` number, since 15 + 8 + 52 + 583 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 158525793 and 158525802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158525831) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4403478 + ... + 4403513.

It is an arithmetic number, because the mean of its divisors is an integer number (28622724).

Almost surely, 2^158525838 is an apocalyptic number.

158525838 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

158525838 is an abundant number, since it is smaller than the sum of its proper divisors (184946850).

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

158525838 is a wasteful number, since it uses less digits than its factorization.

158525838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8806999 (or 8806996 counting only the distinct ones).

The product of its digits is 384000, while the sum is 45.

The square root of 158525838 is about 12590.7044282677. The cubic root of 158525838 is about 541.2110883778.

The spelling of 158525838 in words is "one hundred fifty-eight million, five hundred twenty-five thousand, eight hundred thirty-eight".