25138783 has 2 divisors, whose sum is σ = 25138784. Its totient is φ = 25138782.

The previous prime is 25138759. The next prime is 25138807. The reversal of 25138783 is 38783152.

It is a balanced prime because it is at equal distance from previous prime (25138759) and next prime (25138807).

It is a cyclic number.

It is not a de Polignac number, because 25138783 - 2¹⁷ = 25007711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25138723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12569391 + 12569392.

It is an arithmetic number, because the mean of its divisors is an integer number (12569392).

Almost surely, 2^25138783 is an apocalyptic number.

25138783 is a deficient number, since it is larger than the sum of its proper divisors (1).

25138783 is an equidigital number, since it uses as much as digits as its factorization.

25138783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 37.

The square root of 25138783 is about 5013.8590925554. The cubic root of 25138783 is about 292.9418476149.

It can be divided in two parts, 25138 and 783, that added together give a square (25921 = 161²).

The spelling of 25138783 in words is "twenty-five million, one hundred thirty-eight thousand, seven hundred eighty-three".