23520202450 has 12 divisors (see below), whose sum is σ = 43747576650. Its totient is φ = 9408080960.

The previous prime is 23520202351. The next prime is 23520202463. The reversal of 23520202450 is 5420202532.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 19946195361 + 3574007089 = 141231^2 + 59783^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 235201975 + ... + 235202074.

Almost surely, 2^23520202450 is an apocalyptic number.

23520202450 is a deficient number, since it is larger than the sum of its proper divisors (20227374200).

23520202450 is a wasteful number, since it uses less digits than its factorization.

23520202450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470404061 (or 470404056 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

Adding to 23520202450 its reverse (5420202532), we get a palindrome (28940404982).

The spelling of 23520202450 in words is "twenty-three billion, five hundred twenty million, two hundred two thousand, four hundred fifty".