25530877 has 2 divisors, whose sum is σ = 25530878. Its totient is φ = 25530876.

The previous prime is 25530871. The next prime is 25530899. The reversal of 25530877 is 77803552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23609881 + 1920996 = 4859^2 + 1386^2 .

It is a cyclic number.

It is not a de Polignac number, because 25530877 - 2⁷ = 25530749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25530871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12765438 + 12765439.

It is an arithmetic number, because the mean of its divisors is an integer number (12765439).

Almost surely, 2^25530877 is an apocalyptic number.

It is an amenable number.

25530877 is a deficient number, since it is larger than the sum of its proper divisors (1).

25530877 is an equidigital number, since it uses as much as digits as its factorization.

25530877 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58800, while the sum is 37.

The square root of 25530877 is about 5052.8088228232. The cubic root of 25530877 is about 294.4570190060.

The spelling of 25530877 in words is "twenty-five million, five hundred thirty thousand, eight hundred seventy-seven".