Search a number
-
+
25474469 is a prime number
BaseRepresentation
bin110000100101…
…1010110100101
31202221020101212
41201023112211
523010140334
62310001205
7426346406
oct141132645
952836355
1025474469
111341a389
128646205
13537c167
1435519ad
152382ece
hex184b5a5

25474469 has 2 divisors, whose sum is σ = 25474470. Its totient is φ = 25474468.

The previous prime is 25474451. The next prime is 25474481. The reversal of 25474469 is 96447452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25381444 + 93025 = 5038^2 + 305^2 .

It is a cyclic number.

It is not a de Polignac number, because 25474469 - 212 = 25470373 is a prime.

It is a super-2 number, since 2×254744692 = 1297897141663922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25474429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12737234 + 12737235.

It is an arithmetic number, because the mean of its divisors is an integer number (12737235).

Almost surely, 225474469 is an apocalyptic number.

It is an amenable number.

25474469 is a deficient number, since it is larger than the sum of its proper divisors (1).

25474469 is an equidigital number, since it uses as much as digits as its factorization.

25474469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 41.

The square root of 25474469 is about 5047.2238904174. The cubic root of 25474469 is about 294.2400010125.

The spelling of 25474469 in words is "twenty-five million, four hundred seventy-four thousand, four hundred sixty-nine".