2523450421 has 8 divisors (see below), whose sum is σ = 2540654424. Its totient is φ = 2506291200.

The previous prime is 2523450409. The next prime is 2523450463. The reversal of 2523450421 is 1240543252.

It can be written as a sum of positive squares in 4 ways, for example, as 1788444100 + 735006321 = 42290^2 + 27111^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2523450421 - 2¹¹ = 2523448373 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 2523450421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2523450521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106021 + ... + 127621.

It is an arithmetic number, because the mean of its divisors is an integer number (317581803).

Almost surely, 2^2523450421 is an apocalyptic number.

It is an amenable number.

2523450421 is a deficient number, since it is larger than the sum of its proper divisors (17204003).

2523450421 is a wasteful number, since it uses less digits than its factorization.

2523450421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22391.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 2523450421 is about 50233.9568519144. The cubic root of 2523450421 is about 1361.4392241287.

Adding to 2523450421 its reverse (1240543252), we get a palindrome (3763993673).

The spelling of 2523450421 in words is "two billion, five hundred twenty-three million, four hundred fifty thousand, four hundred twenty-one".