420033330025 has 12 divisors (see below), whose sum is σ = 520895451852. Its totient is φ = 335991746240.

The previous prime is 420033329983. The next prime is 420033330043. The reversal of 420033330025 is 520033330024.

It can be written as a sum of positive squares in 6 ways, for example, as 42955049536 + 377078280489 = 207256^2 + 614067^2 .

It is not a de Polignac number, because 420033330025 - 2¹⁷ = 420033198953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 626182 + ... + 1110031.

It is an arithmetic number, because the mean of its divisors is an integer number (43407954321).

Almost surely, 2^420033330025 is an apocalyptic number.

It is an amenable number.

420033330025 is a deficient number, since it is larger than the sum of its proper divisors (100862121827).

420033330025 is a wasteful number, since it uses less digits than its factorization.

420033330025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1745900 (or 1745895 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 25.

Adding to 420033330025 its reverse (520033330024), we get a palindrome (940066660049).

Subtracting 420033330025 from its reverse (520033330024), we obtain a palindrome (99999999999).

The spelling of 420033330025 in words is "four hundred twenty billion, thirty-three million, three hundred thirty thousand, twenty-five".