155252254 has 16 divisors (see below), whose sum is σ = 251385120. Its totient is φ = 71690080.

The previous prime is 155252243. The next prime is 155252261. The reversal of 155252254 is 452252551.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56857 + ... + 59524.

It is an arithmetic number, because the mean of its divisors is an integer number (15711570).

Almost surely, 2^155252254 is an apocalyptic number.

155252254 is a deficient number, since it is larger than the sum of its proper divisors (96132866).

155252254 is a wasteful number, since it uses less digits than its factorization.

155252254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116435.

The product of its digits is 20000, while the sum is 31.

The square root of 155252254 is about 12460.0262439531. The cubic root of 155252254 is about 537.4597816671.

The spelling of 155252254 in words is "one hundred fifty-five million, two hundred fifty-two thousand, two hundred fifty-four".