155265456 has 40 divisors (see below), whose sum is σ = 418544640. Its totient is φ = 49504576.

The previous prime is 155265443. The next prime is 155265457. The reversal of 155265456 is 654562551.

It is a happy number.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (155265457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69216 + ... + 71423.

It is an arithmetic number, because the mean of its divisors is an integer number (10463616).

Almost surely, 2^155265456 is an apocalyptic number.

155265456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

155265456 is an abundant number, since it is smaller than the sum of its proper divisors (263279184).

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

155265456 is a wasteful number, since it uses less digits than its factorization.

155265456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140673 (or 140667 counting only the distinct ones).

The product of its digits is 180000, while the sum is 39.

The square root of 155265456 is about 12460.5560068562. The cubic root of 155265456 is about 537.4750156766.

The spelling of 155265456 in words is "one hundred fifty-five million, two hundred sixty-five thousand, four hundred fifty-six".