25470451 has 2 divisors, whose sum is σ = 25470452. Its totient is φ = 25470450.

The previous prime is 25470433. The next prime is 25470509. The reversal of 25470451 is 15407452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25470451 - 2¹³ = 25462259 is a prime.

It is not a weakly prime, because it can be changed into another prime (25470751) 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, 12735225 + 12735226.

It is an arithmetic number, because the mean of its divisors is an integer number (12735226).

Almost surely, 2^25470451 is an apocalyptic number.

25470451 is a deficient number, since it is larger than the sum of its proper divisors (1).

25470451 is an equidigital number, since it uses as much as digits as its factorization.

25470451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 25470451 is about 5046.8258341258. The cubic root of 25470451 is about 294.2245303794.

It can be divided in two parts, 25470 and 451, that added together give a square (25921 = 161²).

The spelling of 25470451 in words is "twenty-five million, four hundred seventy thousand, four hundred fifty-one".