155025725042 has 8 divisors (see below), whose sum is σ = 232540401756. Its totient is φ = 77512257792.

The previous prime is 155025725027. The next prime is 155025725059. The reversal of 155025725042 is 240527520551.

It can be written as a sum of positive squares in 2 ways, for example, as 122065685641 + 32960039401 = 349379^2 + 181549^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 155025724987 and 155025725005.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158678 + ... + 578990.

Almost surely, 2^155025725042 is an apocalyptic number.

155025725042 is a deficient number, since it is larger than the sum of its proper divisors (77514676714).

155025725042 is a wasteful number, since it uses less digits than its factorization.

155025725042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604732.

The product of its (nonzero) digits is 140000, while the sum is 38.

The spelling of 155025725042 in words is "one hundred fifty-five billion, twenty-five million, seven hundred twenty-five thousand, forty-two".