155265378 has 48 divisors (see below), whose sum is σ = 331561440. Its totient is φ = 48460032.

The previous prime is 155265367. The next prime is 155265443. The reversal of 155265378 is 873562551.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 209733 + ... + 210471.

It is an arithmetic number, because the mean of its divisors is an integer number (6907530).

Almost surely, 2^155265378 is an apocalyptic number.

155265378 is an abundant number, since it is smaller than the sum of its proper divisors (176296062).

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

155265378 is a wasteful number, since it uses less digits than its factorization.

155265378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879 (or 860 counting only the distinct ones).

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

The square root of 155265378 is about 12460.5528769794. The cubic root of 155265378 is about 537.4749256736.

The spelling of 155265378 in words is "one hundred fifty-five million, two hundred sixty-five thousand, three hundred seventy-eight".