23425500 has 192 divisors, whose sum is σ = 82188288. Its totient is φ = 5068800.

The previous prime is 23425487. The next prime is 23425513. The reversal of 23425500 is 552432.

23425500 = T₂₉₉ + T₃₀₀ + ... + T₅₅₀.

It is an interprime number because it is at equal distance from previous prime (23425487) and next prime (23425513).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 241452 + ... + 241548.

It is an arithmetic number, because the mean of its divisors is an integer number (428064).

Almost surely, 2^23425500 is an apocalyptic number.

23425500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23425500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41094144).

23425500 is an abundant number, since it is smaller than the sum of its proper divisors (58762788).

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

23425500 is a wasteful number, since it uses less digits than its factorization.

23425500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 23425500 is about 4839.9896694105. The cubic root of 23425500 is about 286.1297111594.

Adding to 23425500 its reverse (552432), we get a palindrome (23977932).

The spelling of 23425500 in words is "twenty-three million, four hundred twenty-five thousand, five hundred".