155782052 has 24 divisors (see below), whose sum is σ = 278623800. Its totient is φ = 76184576.

The previous prime is 155782043. The next prime is 155782057. The reversal of 155782052 is 250287551.

It can be written as a sum of positive squares in 4 ways, for example, as 19219456 + 136562596 = 4384^2 + 11686^2 .

It is not an unprimeable number, because it can be changed into a prime (155782057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81524 + ... + 83412.

It is an arithmetic number, because the mean of its divisors is an integer number (11609325).

Almost surely, 2^155782052 is an apocalyptic number.

It is an amenable number.

155782052 is a deficient number, since it is larger than the sum of its proper divisors (122841748).

155782052 is a wasteful number, since it uses less digits than its factorization.

155782052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2335 (or 2333 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 35.

The square root of 155782052 is about 12481.2680445538. The cubic root of 155782052 is about 538.0704476969.

The spelling of 155782052 in words is "one hundred fifty-five million, seven hundred eighty-two thousand, fifty-two".