155379504 has 80 divisors (see below), whose sum is σ = 469969920. Its totient is φ = 43307520.

The previous prime is 155379479. The next prime is 155379527. The reversal of 155379504 is 405973551.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8137 + ... + 19415.

It is an arithmetic number, because the mean of its divisors is an integer number (5874624).

Almost surely, 2^155379504 is an apocalyptic number.

155379504 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 155379504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234984960).

155379504 is an abundant number, since it is smaller than the sum of its proper divisors (314590416).

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

155379504 is a wasteful number, since it uses less digits than its factorization.

155379504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11338 (or 11332 counting only the distinct ones).

The product of its (nonzero) digits is 94500, while the sum is 39.

The square root of 155379504 is about 12465.1315275853. The cubic root of 155379504 is about 537.6065816407.

The spelling of 155379504 in words is "one hundred fifty-five million, three hundred seventy-nine thousand, five hundred four".