4025354021 has 8 divisors (see below), whose sum is σ = 4377085440. Its totient is φ = 3679635312.

The previous prime is 4025354009. The next prime is 4025354023. The reversal of 4025354021 is 1204535204.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4025354021 - 2¹⁰ = 4025352997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4025354023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1501781 + ... + 1504458.

It is an arithmetic number, because the mean of its divisors is an integer number (547135680).

Almost surely, 2^4025354021 is an apocalyptic number.

It is an amenable number.

4025354021 is a deficient number, since it is larger than the sum of its proper divisors (351731419).

4025354021 is a wasteful number, since it uses less digits than its factorization.

4025354021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3006355.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 4025354021 is about 63445.6777172409. The cubic root of 4025354021 is about 1590.7479071780.

Adding to 4025354021 its reverse (1204535204), we get a palindrome (5229889225).

The spelling of 4025354021 in words is "four billion, twenty-five million, three hundred fifty-four thousand, twenty-one".