2529989401 has 9 divisors (see below), whose sum is σ = 2553288703. Its totient is φ = 2506902160.

The previous prime is 2529989393. The next prime is 2529989417. The reversal of 2529989401 is 1049899252.

The square root of 2529989401 is 50299.

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., 1709739801 + 820249600 = 41349^2 + 28640^2 .

It is not a de Polignac number, because 2529989401 - 2³ = 2529989393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2529989471) 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, 9003381 + ... + 9003661.

Almost surely, 2^2529989401 is an apocalyptic number.

2529989401 is the 50299-th square number.

2529989401 is the 25150-th centered octagonal number.

It is an amenable number.

2529989401 is a deficient number, since it is larger than the sum of its proper divisors (23299302).

2529989401 is an frugal number, since it uses more digits than its factorization.

2529989401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920 (or 460 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 49.

The cubic root of 2529989401 is about 1362.6141689927.

Multiplying 2529989401 by its sum of digits (49), we get a square (123969480649 = 352093²).

The spelling of 2529989401 in words is "two billion, five hundred twenty-nine million, nine hundred eighty-nine thousand, four hundred one".