20150254434 has 16 divisors (see below), whose sum is σ = 40302619200. Its totient is φ = 6716399760.

The previous prime is 20150254429. The next prime is 20150254447. The reversal of 20150254434 is 43445205102.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53764 + ... + 207824.

It is an arithmetic number, because the mean of its divisors is an integer number (2518913700).

Almost surely, 2^20150254434 is an apocalyptic number.

20150254434 is an abundant number, since it is smaller than the sum of its proper divisors (20152364766).

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

20150254434 is a wasteful number, since it uses less digits than its factorization.

20150254434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175865.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 20150254434 its reverse (43445205102), we get a palindrome (63595459536).

The spelling of 20150254434 in words is "twenty billion, one hundred fifty million, two hundred fifty-four thousand, four hundred thirty-four".