150018280758025 has 9 divisors (see below), whose sum is σ = 186022744078791. Its totient is φ = 120014575613640.

The previous prime is 150018280758019. The next prime is 150018280758029. The reversal of 150018280758025 is 520857082810051.

It is a happy number.

The square root of 150018280758025 is 12248195.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 54006581072889 + 96011699685136 = 7348917^2 + 9798556^2 .

It is not a de Polignac number, because 150018280758025 - 2³¹ = 150016133274377 is a prime.

It is a super-2 number, since 2×150018280758025² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150018280758029) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 60016156 + ... + 62465794.

Almost surely, 2^{150018280758025} is an apocalyptic number.

150018280758025 is the 12248195-th square number.

150018280758025 is the 6124098-th centered octagonal number.

It is an amenable number.

150018280758025 is a deficient number, since it is larger than the sum of its proper divisors (36004463320766).

150018280758025 is an frugal number, since it uses more digits than its factorization.

150018280758025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4899288 (or 2449644 counting only the distinct ones).

The product of its (nonzero) digits is 1792000, while the sum is 52.

The spelling of 150018280758025 in words is "one hundred fifty trillion, eighteen billion, two hundred eighty million, seven hundred fifty-eight thousand, twenty-five".