23780525 has 6 divisors (see below), whose sum is σ = 29487882. Its totient is φ = 19024400.

The previous prime is 23780513. The next prime is 23780539. The reversal of 23780525 is 52508732.

It can be written as a sum of positive squares in 3 ways, for example, as 24649 + 23755876 = 157^2 + 4874^2 .

It is not a de Polignac number, because 23780525 - 2¹⁸ = 23518381 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23780491 and 23780500.

It is a congruent number.

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, 475586 + ... + 475635.

It is an arithmetic number, because the mean of its divisors is an integer number (4914647).

Almost surely, 2^23780525 is an apocalyptic number.

23780525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23780525 is a deficient number, since it is larger than the sum of its proper divisors (5707357).

23780525 is an equidigital number, since it uses as much as digits as its factorization.

23780525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951231 (or 951226 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 23780525 is about 4876.5279656739. The cubic root of 23780525 is about 287.5679486528.

The spelling of 23780525 in words is "twenty-three million, seven hundred eighty thousand, five hundred twenty-five".