4351421925 has 48 divisors (see below), whose sum is σ = 8000112960. Its totient is φ = 2318904000.

The previous prime is 4351421863. The next prime is 4351421929. The reversal of 4351421925 is 5291241534.

4351421925 is a `hidden beast` number, since 435 + 1 + 4 + 219 + 2 + 5 = 666.

It is not a de Polignac number, because 4351421925 - 2¹⁶ = 4351356389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4351421925.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4351421929) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1443670 + ... + 1446680.

It is an arithmetic number, because the mean of its divisors is an integer number (166669020).

Almost surely, 2^4351421925 is an apocalyptic number.

4351421925 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4351421925 is a deficient number, since it is larger than the sum of its proper divisors (3648691035).

4351421925 is a wasteful number, since it uses less digits than its factorization.

4351421925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5171 (or 5160 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 4351421925 is about 65965.3084962088. The cubic root of 4351421925 is about 1632.5897488781.

The spelling of 4351421925 in words is "four billion, three hundred fifty-one million, four hundred twenty-one thousand, nine hundred twenty-five".