425125310450251 has 4 divisors (see below), whose sum is σ = 425183001502600. Its totient is φ = 425067619397904.

The previous prime is 425125310450173. The next prime is 425125310450369. The reversal of 425125310450251 is 152054013521524.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 425125310450251 - 2⁷ = 425125310450123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425125310456251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28845515121 + ... + 28845529858.

It is an arithmetic number, because the mean of its divisors is an integer number (106295750375650).

Almost surely, 2^{425125310450251} is an apocalyptic number.

425125310450251 is a deficient number, since it is larger than the sum of its proper divisors (57691052349).

425125310450251 is an equidigital number, since it uses as much as digits as its factorization.

425125310450251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57691052348.

The product of its (nonzero) digits is 240000, while the sum is 40.

Adding to 425125310450251 its reverse (152054013521524), we get a palindrome (577179323971775).

The spelling of 425125310450251 in words is "four hundred twenty-five trillion, one hundred twenty-five billion, three hundred ten million, four hundred fifty thousand, two hundred fifty-one".