2500554977 has 2 divisors, whose sum is σ = 2500554978. Its totient is φ = 2500554976.

The previous prime is 2500554967. The next prime is 2500555019. The reversal of 2500554977 is 7794550052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2242117201 + 258437776 = 47351^2 + 16076^2 .

It is a cyclic number.

It is not a de Polignac number, because 2500554977 - 2⁶ = 2500554913 is a prime.

It is not a weakly prime, because it can be changed into another prime (2500554937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1250277488 + 1250277489.

It is an arithmetic number, because the mean of its divisors is an integer number (1250277489).

Almost surely, 2^2500554977 is an apocalyptic number.

It is an amenable number.

2500554977 is a deficient number, since it is larger than the sum of its proper divisors (1).

2500554977 is an equidigital number, since it uses as much as digits as its factorization.

2500554977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 441000, while the sum is 44.

The square root of 2500554977 is about 50005.5494620347. The cubic root of 2500554977 is about 1357.3092301566.

The spelling of 2500554977 in words is "two billion, five hundred million, five hundred fifty-four thousand, nine hundred seventy-seven".