25001629 has 2 divisors, whose sum is σ = 25001630. Its totient is φ = 25001628.

The previous prime is 25001623. The next prime is 25001633. The reversal of 25001629 is 92610052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22781529 + 2220100 = 4773^2 + 1490^2 .

It is a cyclic number.

It is not a de Polignac number, because 25001629 - 2⁵ = 25001597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25001623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12500814 + 12500815.

It is an arithmetic number, because the mean of its divisors is an integer number (12500815).

Almost surely, 2^25001629 is an apocalyptic number.

It is an amenable number.

25001629 is a deficient number, since it is larger than the sum of its proper divisors (1).

25001629 is an equidigital number, since it uses as much as digits as its factorization.

25001629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 25001629 is about 5000.1628973464. The cubic root of 25001629 is about 292.4081246499.

The spelling of 25001629 in words is "twenty-five million, one thousand, six hundred twenty-nine".