2523636461 has 2 divisors, whose sum is σ = 2523636462. Its totient is φ = 2523636460.

The previous prime is 2523636457. The next prime is 2523636473. The reversal of 2523636461 is 1646363252.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1781346436 + 742290025 = 42206^2 + 27245^2 .

It is a cyclic number.

It is not a de Polignac number, because 2523636461 - 2² = 2523636457 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2523636421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1261818230 + 1261818231.

It is an arithmetic number, because the mean of its divisors is an integer number (1261818231).

Almost surely, 2^2523636461 is an apocalyptic number.

It is an amenable number.

2523636461 is a deficient number, since it is larger than the sum of its proper divisors (1).

2523636461 is an equidigital number, since it uses as much as digits as its factorization.

2523636461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 38.

The square root of 2523636461 is about 50235.8085532621. The cubic root of 2523636461 is about 1361.4726804268.

The spelling of 2523636461 in words is "two billion, five hundred twenty-three million, six hundred thirty-six thousand, four hundred sixty-one".