30432211225 has 12 divisors (see below), whose sum is σ = 40638707116. Its totient is φ = 22473017280.

The previous prime is 30432211171. The next prime is 30432211253. The reversal of 30432211225 is 52211223403.

It can be written as a sum of positive squares in 6 ways, for example, as 331349209 + 30100862016 = 18203^2 + 173496^2 .

It is not a de Polignac number, because 30432211225 - 2¹⁷ = 30432080153 is a prime.

It is a super-2 number, since 2×30432211225² (a number of 22 digits) contains 22 as substring.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30432211225.

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, 46818462 + ... + 46819111.

Almost surely, 2^30432211225 is an apocalyptic number.

It is an amenable number.

30432211225 is a deficient number, since it is larger than the sum of its proper divisors (10206495891).

30432211225 is a wasteful number, since it uses less digits than its factorization.

30432211225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93637596 (or 93637591 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 30432211225 its reverse (52211223403), we get a palindrome (82643434628).

The spelling of 30432211225 in words is "thirty billion, four hundred thirty-two million, two hundred eleven thousand, two hundred twenty-five".