158525878 has 24 divisors (see below), whose sum is σ = 285539904. Its totient is φ = 65746800.

The previous prime is 158525837. The next prime is 158525879. The reversal of 158525878 is 878525851.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158525879) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23053 + ... + 29128.

It is an arithmetic number, because the mean of its divisors is an integer number (11897496).

Almost surely, 2^158525878 is an apocalyptic number.

158525878 is a deficient number, since it is larger than the sum of its proper divisors (127014026).

158525878 is a wasteful number, since it uses less digits than its factorization.

158525878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52228 (or 52221 counting only the distinct ones).

The product of its digits is 896000, while the sum is 49.

The square root of 158525878 is about 12590.7060167411. The cubic root of 158525878 is about 541.2111338981.

The spelling of 158525878 in words is "one hundred fifty-eight million, five hundred twenty-five thousand, eight hundred seventy-eight".