30620045125 has 32 divisors (see below), whose sum is σ = 41857002720. Its totient is φ = 22260044800.

The previous prime is 30620045077. The next prime is 30620045143. The reversal of 30620045125 is 52154002603.

It can be written as a sum of positive squares in 16 ways, for example, as 8387445889 + 22232599236 = 91583^2 + 149106^2 .

It is a de Polignac number, because none of the positive numbers 2^k-30620045125 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30620045093 and 30620045102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 186814 + ... + 310063.

It is an arithmetic number, because the mean of its divisors is an integer number (1308031335).

Almost surely, 2^30620045125 is an apocalyptic number.

It is an amenable number.

30620045125 is a deficient number, since it is larger than the sum of its proper divisors (11236957595).

30620045125 is a wasteful number, since it uses less digits than its factorization.

30620045125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496938 (or 496928 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 30620045125 its reverse (52154002603), we get a palindrome (82774047728).

The spelling of 30620045125 in words is "thirty billion, six hundred twenty million, forty-five thousand, one hundred twenty-five".