150505551 has 24 divisors (see below), whose sum is σ = 248844960. Its totient is φ = 85867776.

The previous prime is 150505513. The next prime is 150505559. The reversal of 150505551 is 155505051.

150505551 is a `hidden beast` number, since 150 + 505 + 5 + 5 + 1 = 666.

It is not a de Polignac number, because 150505551 - 2¹³ = 150497359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150505559) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 49491 + ... + 52443.

It is an arithmetic number, because the mean of its divisors is an integer number (10368540).

Almost surely, 2^150505551 is an apocalyptic number.

150505551 is a deficient number, since it is larger than the sum of its proper divisors (98339409).

150505551 is a wasteful number, since it uses less digits than its factorization.

150505551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3775 (or 3772 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 27.

The square root of 150505551 is about 12268.0703861691. The cubic root of 150505551 is about 531.9255353499.

The spelling of 150505551 in words is "one hundred fifty million, five hundred five thousand, five hundred fifty-one".