265902451 has 2 divisors, whose sum is σ = 265902452. Its totient is φ = 265902450.

The previous prime is 265902449. The next prime is 265902463. The reversal of 265902451 is 154209562.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 265902451 - 2¹ = 265902449 is a prime.

It is a super-2 number, since 2×265902451² = 141408226895614802, which contains 22 as substring.

Together with 265902449, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (265902401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132951225 + 132951226.

It is an arithmetic number, because the mean of its divisors is an integer number (132951226).

Almost surely, 2^265902451 is an apocalyptic number.

265902451 is a deficient number, since it is larger than the sum of its proper divisors (1).

265902451 is an equidigital number, since it uses as much as digits as its factorization.

265902451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 265902451 is about 16306.5155996001. The cubic root of 265902451 is about 643.0441330069.

The spelling of 265902451 in words is "two hundred sixty-five million, nine hundred two thousand, four hundred fifty-one".