155425479 has 16 divisors (see below), whose sum is σ = 227023104. Its totient is φ = 93801600.

The previous prime is 155425463. The next prime is 155425481. The reversal of 155425479 is 974524551.

155425479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 155425479 - 2⁴ = 155425463 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 155425479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155425429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1819 + ... + 17724.

It is an arithmetic number, because the mean of its divisors is an integer number (14188944).

Almost surely, 2^155425479 is an apocalyptic number.

155425479 is a deficient number, since it is larger than the sum of its proper divisors (71597625).

155425479 is a wasteful number, since it uses less digits than its factorization.

155425479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19798.

The product of its digits is 252000, while the sum is 42.

The square root of 155425479 is about 12466.9755353895. The cubic root of 155425479 is about 537.6596002705.

The spelling of 155425479 in words is "one hundred fifty-five million, four hundred twenty-five thousand, four hundred seventy-nine".