25469419037 has 2 divisors, whose sum is σ = 25469419038. Its totient is φ = 25469419036.

The previous prime is 25469419033. The next prime is 25469419097. The reversal of 25469419037 is 73091496452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24183049081 + 1286369956 = 155509^2 + 35866^2 .

It is a cyclic number.

It is not a de Polignac number, because 25469419037 - 2² = 25469419033 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25469419033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12734709518 + 12734709519.

It is an arithmetic number, because the mean of its divisors is an integer number (12734709519).

Almost surely, 2^25469419037 is an apocalyptic number.

It is an amenable number.

25469419037 is a deficient number, since it is larger than the sum of its proper divisors (1).

25469419037 is an equidigital number, since it uses as much as digits as its factorization.

25469419037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1632960, while the sum is 50.

The spelling of 25469419037 in words is "twenty-five billion, four hundred sixty-nine million, four hundred nineteen thousand, thirty-seven".