155500402 has 16 divisors (see below), whose sum is σ = 241339392. Its totient is φ = 75065760.

The previous prime is 155500363. The next prime is 155500421. The reversal of 155500402 is 204005551.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25998 + ... + 31414.

It is an arithmetic number, because the mean of its divisors is an integer number (15083712).

Almost surely, 2^155500402 is an apocalyptic number.

155500402 is a deficient number, since it is larger than the sum of its proper divisors (85838990).

155500402 is a wasteful number, since it uses less digits than its factorization.

155500402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5913.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 155500402 is about 12469.9800320610. The cubic root of 155500402 is about 537.7459794995.

Adding to 155500402 its reverse (204005551), we get a palindrome (359505953).

The spelling of 155500402 in words is "one hundred fifty-five million, five hundred thousand, four hundred two".