25112977 has 2 divisors, whose sum is σ = 25112978. Its totient is φ = 25112976.

The previous prime is 25112947. The next prime is 25112999. The reversal of 25112977 is 77921152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14930496 + 10182481 = 3864^2 + 3191^2 .

It is a cyclic number.

It is not a de Polignac number, because 25112977 - 2¹¹ = 25110929 is a prime.

It is a super-2 number, since 2×25112977² = 1261323227605058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25112917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12556488 + 12556489.

It is an arithmetic number, because the mean of its divisors is an integer number (12556489).

Almost surely, 2^25112977 is an apocalyptic number.

It is an amenable number.

25112977 is a deficient number, since it is larger than the sum of its proper divisors (1).

25112977 is an equidigital number, since it uses as much as digits as its factorization.

25112977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8820, while the sum is 34.

The square root of 25112977 is about 5011.2849649566. The cubic root of 25112977 is about 292.8415743232.

The spelling of 25112977 in words is "twenty-five million, one hundred twelve thousand, nine hundred seventy-seven".