25620743 has 2 divisors, whose sum is σ = 25620744. Its totient is φ = 25620742.

The previous prime is 25620739. The next prime is 25620757. The reversal of 25620743 is 34702652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25620743 - 2² = 25620739 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25620713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12810371 + 12810372.

It is an arithmetic number, because the mean of its divisors is an integer number (12810372).

Almost surely, 2^25620743 is an apocalyptic number.

25620743 is a deficient number, since it is larger than the sum of its proper divisors (1).

25620743 is an equidigital number, since it uses as much as digits as its factorization.

25620743 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 25620743 is about 5061.6936888753. The cubic root of 25620743 is about 294.8021003442.

The spelling of 25620743 in words is "twenty-five million, six hundred twenty thousand, seven hundred forty-three".