425531501 has 2 divisors, whose sum is σ = 425531502. Its totient is φ = 425531500.

The previous prime is 425531489. The next prime is 425531521. The reversal of 425531501 is 105135524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 405055876 + 20475625 = 20126^2 + 4525^2 .

It is a cyclic number.

It is not a de Polignac number, because 425531501 - 2²⁶ = 358422637 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 (425531521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212765750 + 212765751.

It is an arithmetic number, because the mean of its divisors is an integer number (212765751).

Almost surely, 2^425531501 is an apocalyptic number.

It is an amenable number.

425531501 is a deficient number, since it is larger than the sum of its proper divisors (1).

425531501 is an equidigital number, since it uses as much as digits as its factorization.

425531501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 425531501 is about 20628.4148930547. The cubic root of 425531501 is about 752.1605852590.

The spelling of 425531501 in words is "four hundred twenty-five million, five hundred thirty-one thousand, five hundred one".