2537770561 has 2 divisors, whose sum is σ = 2537770562. Its totient is φ = 2537770560.

The previous prime is 2537770519. The next prime is 2537770579. The reversal of 2537770561 is 1650777352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2536129600 + 1640961 = 50360^2 + 1281^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2537770561 is a prime.

It is not a weakly prime, because it can be changed into another prime (2537770661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1268885280 + 1268885281.

It is an arithmetic number, because the mean of its divisors is an integer number (1268885281).

Almost surely, 2^2537770561 is an apocalyptic number.

It is an amenable number.

2537770561 is a deficient number, since it is larger than the sum of its proper divisors (1).

2537770561 is an equidigital number, since it uses as much as digits as its factorization.

2537770561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 308700, while the sum is 43.

The square root of 2537770561 is about 50376.2896708362. The cubic root of 2537770561 is about 1364.0096778165.

The spelling of 2537770561 in words is "two billion, five hundred thirty-seven million, seven hundred seventy thousand, five hundred sixty-one".