15020051225 has 12 divisors (see below), whose sum is σ = 19720444284. Its totient is φ = 11309214720.

The previous prime is 15020051213. The next prime is 15020051239. The reversal of 15020051225 is 52215002051.

It can be written as a sum of positive squares in 6 ways, for example, as 226924096 + 14793127129 = 15064^2 + 121627^2 .

It is not a de Polignac number, because 15020051225 - 2⁶ = 15020051161 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15020051225.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17670224 + ... + 17671073.

It is an arithmetic number, because the mean of its divisors is an integer number (1643370357).

Almost surely, 2^15020051225 is an apocalyptic number.

It is an amenable number.

15020051225 is a deficient number, since it is larger than the sum of its proper divisors (4700393059).

15020051225 is a wasteful number, since it uses less digits than its factorization.

15020051225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35341324 (or 35341319 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

Adding to 15020051225 its reverse (52215002051), we get a palindrome (67235053276).

The spelling of 15020051225 in words is "fifteen billion, twenty million, fifty-one thousand, two hundred twenty-five".