25220077 has 2 divisors, whose sum is σ = 25220078. Its totient is φ = 25220076.

The previous prime is 25220057. The next prime is 25220099. The reversal of 25220077 is 77002252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18096516 + 7123561 = 4254^2 + 2669^2 .

It is a cyclic number.

It is not a de Polignac number, because 25220077 - 2¹¹ = 25218029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25220057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12610038 + 12610039.

It is an arithmetic number, because the mean of its divisors is an integer number (12610039).

Almost surely, 2^25220077 is an apocalyptic number.

It is an amenable number.

25220077 is a deficient number, since it is larger than the sum of its proper divisors (1).

25220077 is an equidigital number, since it uses as much as digits as its factorization.

25220077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 25220077 is about 5021.9594781320. The cubic root of 25220077 is about 293.2572804154.

The spelling of 25220077 in words is "twenty-five million, two hundred twenty thousand, seventy-seven".