25142477 has 2 divisors, whose sum is σ = 25142478. Its totient is φ = 25142476.

The previous prime is 25142413. The next prime is 25142489. The reversal of 25142477 is 77424152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22221796 + 2920681 = 4714^2 + 1709^2 .

It is a cyclic number.

It is not a de Polignac number, because 25142477 - 2⁶ = 25142413 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25142077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12571238 + 12571239.

It is an arithmetic number, because the mean of its divisors is an integer number (12571239).

Almost surely, 2^25142477 is an apocalyptic number.

It is an amenable number.

25142477 is a deficient number, since it is larger than the sum of its proper divisors (1).

25142477 is an equidigital number, since it uses as much as digits as its factorization.

25142477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15680, while the sum is 32.

The square root of 25142477 is about 5014.2274579440. The cubic root of 25142477 is about 292.9561956204.

The spelling of 25142477 in words is "twenty-five million, one hundred forty-two thousand, four hundred seventy-seven".