155425004 has 24 divisors (see below), whose sum is σ = 312012288. Its totient is φ = 66361680.

The previous prime is 155425003. The next prime is 155425009. The reversal of 155425004 is 400524551.

It is not an unprimeable number, because it can be changed into a prime (155425001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2654 + ... + 17829.

It is an arithmetic number, because the mean of its divisors is an integer number (13000512).

Almost surely, 2^155425004 is an apocalyptic number.

155425004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

155425004 is an abundant number, since it is smaller than the sum of its proper divisors (156587284).

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

155425004 is a wasteful number, since it uses less digits than its factorization.

155425004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20765 (or 20763 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 155425004 is about 12466.9564850448. The cubic root of 155425004 is about 537.6590525513.

Adding to 155425004 its reverse (400524551), we get a palindrome (555949555).

The spelling of 155425004 in words is "one hundred fifty-five million, four hundred twenty-five thousand, four".