155396544 has 28 divisors (see below), whose sum is σ = 411153864. Its totient is φ = 51798784.

The previous prime is 155396543. The next prime is 155396557. The reversal of 155396544 is 445693551.

It is a junction number, because it is equal to n+sod(n) for n = 155396496 and 155396505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155396543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404487 + ... + 404870.

Almost surely, 2^155396544 is an apocalyptic number.

It is an amenable number.

155396544 is an abundant number, since it is smaller than the sum of its proper divisors (255757320).

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

155396544 is an equidigital number, since it uses as much as digits as its factorization.

155396544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809372 (or 809362 counting only the distinct ones).

The product of its digits is 324000, while the sum is 42.

The square root of 155396544 is about 12465.8150154733. The cubic root of 155396544 is about 537.6262334846.

The spelling of 155396544 in words is "one hundred fifty-five million, three hundred ninety-six thousand, five hundred forty-four".