23553925 has 24 divisors (see below), whose sum is σ = 31210056. Its totient is φ = 17571840.

The previous prime is 23553899. The next prime is 23553947. The reversal of 23553925 is 52935532.

23553925 = T₉₇ + T₉₈ + ... + T₅₂₁.

23553925 is nontrivially palindromic in base 14.

It can be written as a sum of positive squares in 12 ways, for example, as 6240004 + 17313921 = 2498^2 + 4161^2 .

It is not a de Polignac number, because 23553925 - 2⁷ = 23553797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66549 + ... + 66901.

It is an arithmetic number, because the mean of its divisors is an integer number (1300419).

Almost surely, 2^23553925 is an apocalyptic number.

23553925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23553925 is a deficient number, since it is larger than the sum of its proper divisors (7656131).

23553925 is a wasteful number, since it uses less digits than its factorization.

23553925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537 (or 532 counting only the distinct ones).

The product of its digits is 40500, while the sum is 34.

The square root of 23553925 is about 4853.2386094236. The cubic root of 23553925 is about 286.6516389875.

The spelling of 23553925 in words is "twenty-three million, five hundred fifty-three thousand, nine hundred twenty-five".