425150153221 has 4 divisors (see below), whose sum is σ = 426210378444. Its totient is φ = 424089928000.

The previous prime is 425150153179. The next prime is 425150153237. The reversal of 425150153221 is 122351051524.

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

It can be written as a sum of positive squares in 2 ways, for example, as 396075129025 + 29075024196 = 629345^2 + 170514^2 .

It is a cyclic number.

It is not a de Polignac number, because 425150153221 - 2⁹ = 425150152709 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425150153251) 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, 530112010 + ... + 530112811.

It is an arithmetic number, because the mean of its divisors is an integer number (106552594611).

Almost surely, 2^425150153221 is an apocalyptic number.

It is an amenable number.

425150153221 is a deficient number, since it is larger than the sum of its proper divisors (1060225223).

425150153221 is a wasteful number, since it uses less digits than its factorization.

425150153221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060225222.

The product of its (nonzero) digits is 12000, while the sum is 31.

The spelling of 425150153221 in words is "four hundred twenty-five billion, one hundred fifty million, one hundred fifty-three thousand, two hundred twenty-one".