155252450 has 24 divisors (see below), whose sum is σ = 289112448. Its totient is φ = 62027280.

The previous prime is 155252443. The next prime is 155252473. The reversal of 155252450 is 54252551.

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 11 ways as a sum of consecutive naturals, for example, 63959 + ... + 66341.

It is an arithmetic number, because the mean of its divisors is an integer number (12046352).

Almost surely, 2^155252450 is an apocalyptic number.

155252450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155252450 is a deficient number, since it is larger than the sum of its proper divisors (133859998).

155252450 is a wasteful number, since it uses less digits than its factorization.

155252450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3698 (or 3693 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 29.

The square root of 155252450 is about 12460.0341091026. The cubic root of 155252450 is about 537.4600078412.

The spelling of 155252450 in words is "one hundred fifty-five million, two hundred fifty-two thousand, four hundred fifty".