30525407072 has 24 divisors (see below), whose sum is σ = 60570107136. Its totient is φ = 15142522752.

The previous prime is 30525407069. The next prime is 30525407089. The reversal of 30525407072 is 27070452503.

It is a super-2 number, since 2×30525407072² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3751523 + ... + 3759650.

It is an arithmetic number, because the mean of its divisors is an integer number (2523754464).

Almost surely, 2^30525407072 is an apocalyptic number.

30525407072 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30525407072 is a deficient number, since it is larger than the sum of its proper divisors (30044700064).

30525407072 is a wasteful number, since it uses less digits than its factorization.

30525407072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7511310 (or 7511302 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 35.

Adding to 30525407072 its reverse (27070452503), we get a palindrome (57595859575).

The spelling of 30525407072 in words is "thirty billion, five hundred twenty-five million, four hundred seven thousand, seventy-two".