33501425225 has 24 divisors (see below), whose sum is σ = 43056064920. Its totient is φ = 25837470720.

The previous prime is 33501425203. The next prime is 33501425267. The reversal of 33501425225 is 52252410533.

It can be written as a sum of positive squares in 12 ways, for example, as 3816891961 + 29684533264 = 61781^2 + 172292^2 .

It is not a de Polignac number, because 33501425225 - 2⁶ = 33501425161 is a prime.

It is a super-2 number, since 2×33501425225² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33501425191 and 33501425200.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65312 + ... + 266961.

It is an arithmetic number, because the mean of its divisors is an integer number (1794002705).

Almost surely, 2^33501425225 is an apocalyptic number.

It is an amenable number.

33501425225 is a deficient number, since it is larger than the sum of its proper divisors (9554639695).

33501425225 is a wasteful number, since it uses less digits than its factorization.

33501425225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332429 (or 332424 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 33501425225 its reverse (52252410533), we get a palindrome (85753835758).

The spelling of 33501425225 in words is "thirty-three billion, five hundred one million, four hundred twenty-five thousand, two hundred twenty-five".