25424433513461 has 2 divisors, whose sum is σ = 25424433513462. Its totient is φ = 25424433513460.

The previous prime is 25424433513421. The next prime is 25424433513467. The reversal of 25424433513461 is 16431533442452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19666617306436 + 5757816207025 = 4434706^2 + 2399545^2 .

It is a cyclic number.

It is not a de Polignac number, because 25424433513461 - 2³⁰ = 25423359771637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25424433513467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12712216756730 + 12712216756731.

It is an arithmetic number, because the mean of its divisors is an integer number (12712216756731).

Almost surely, 2^{25424433513461} is an apocalyptic number.

It is an amenable number.

25424433513461 is a deficient number, since it is larger than the sum of its proper divisors (1).

25424433513461 is an equidigital number, since it uses as much as digits as its factorization.

25424433513461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4147200, while the sum is 47.

The spelling of 25424433513461 in words is "twenty-five trillion, four hundred twenty-four billion, four hundred thirty-three million, five hundred thirteen thousand, four hundred sixty-one".