155425564 has 48 divisors (see below), whose sum is σ = 320398848. Its totient is φ = 64588608.

The previous prime is 155425561. The next prime is 155425573. The reversal of 155425564 is 465524551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155425561) 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 15 ways as a sum of consecutive naturals, for example, 200682 + ... + 201454.

It is an arithmetic number, because the mean of its divisors is an integer number (6674976).

Almost surely, 2^155425564 is an apocalyptic number.

155425564 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155425564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160199424).

155425564 is an abundant number, since it is smaller than the sum of its proper divisors (164973284).

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

155425564 is a wasteful number, since it uses less digits than its factorization.

155425564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994 (or 992 counting only the distinct ones).

The product of its digits is 120000, while the sum is 37.

The square root of 155425564 is about 12466.9789443955. The cubic root of 155425564 is about 537.6596982833.

The spelling of 155425564 in words is "one hundred fifty-five million, four hundred twenty-five thousand, five hundred sixty-four".