425420651 has 2 divisors, whose sum is σ = 425420652. Its totient is φ = 425420650.

The previous prime is 425420579. The next prime is 425420669. The reversal of 425420651 is 156024524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 425420651 - 2¹⁰ = 425419627 is a prime.

It is not a weakly prime, because it can be changed into another prime (425440651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212710325 + 212710326.

It is an arithmetic number, because the mean of its divisors is an integer number (212710326).

Almost surely, 2^425420651 is an apocalyptic number.

425420651 is a deficient number, since it is larger than the sum of its proper divisors (1).

425420651 is an equidigital number, since it uses as much as digits as its factorization.

425420651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 425420651 is about 20625.7278901861. The cubic root of 425420651 is about 752.0952675395.

The spelling of 425420651 in words is "four hundred twenty-five million, four hundred twenty thousand, six hundred fifty-one".