25434001 has 2 divisors, whose sum is σ = 25434002. Its totient is φ = 25434000.

The previous prime is 25433999. The next prime is 25434037. The reversal of 25434001 is 10043452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24512401 + 921600 = 4951^2 + 960^2 .

It is a cyclic number.

It is not a de Polignac number, because 25434001 - 2¹ = 25433999 is a prime.

Together with 25433999, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 25434001.

It is not a weakly prime, because it can be changed into another prime (25434041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12717000 + 12717001.

It is an arithmetic number, because the mean of its divisors is an integer number (12717001).

Almost surely, 2^25434001 is an apocalyptic number.

It is an amenable number.

25434001 is a deficient number, since it is larger than the sum of its proper divisors (1).

25434001 is an equidigital number, since it uses as much as digits as its factorization.

25434001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 25434001 is about 5043.2133605470. The cubic root of 25434001 is about 294.0841114023.

Adding to 25434001 its reverse (10043452), we get a palindrome (35477453).

The spelling of 25434001 in words is "twenty-five million, four hundred thirty-four thousand, one".