20150225412 has 12 divisors (see below), whose sum is σ = 47017192656. Its totient is φ = 6716741800.

The previous prime is 20150225357. The next prime is 20150225413. The reversal of 20150225412 is 21452205102.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (20150225413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 839592714 + ... + 839592737.

It is an arithmetic number, because the mean of its divisors is an integer number (3918099388).

Almost surely, 2^20150225412 is an apocalyptic number.

It is an amenable number.

20150225412 is an abundant number, since it is smaller than the sum of its proper divisors (26866967244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20150225412 is a wasteful number, since it uses less digits than its factorization.

20150225412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1679185458 (or 1679185456 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The spelling of 20150225412 in words is "twenty billion, one hundred fifty million, two hundred twenty-five thousand, four hundred twelve".