425351231506 has 4 divisors (see below), whose sum is σ = 638026847262. Its totient is φ = 212675615752.

The previous prime is 425351231453. The next prime is 425351231507. The reversal of 425351231506 is 605132153524.

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

It can be written as a sum of positive squares in only one way, i.e., 425332230625 + 19000881 = 652175^2 + 4359^2 .

It is not an unprimeable number, because it can be changed into a prime (425351231507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106337807875 + ... + 106337807878.

Almost surely, 2^425351231506 is an apocalyptic number.

425351231506 is a deficient number, since it is larger than the sum of its proper divisors (212675615756).

425351231506 is a wasteful number, since it uses less digits than its factorization.

425351231506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212675615755.

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 425351231506 in words is "four hundred twenty-five billion, three hundred fifty-one million, two hundred thirty-one thousand, five hundred six".