30212752551 has 16 divisors (see below), whose sum is σ = 43391109120. Its totient is φ = 18644614560.

The previous prime is 30212752547. The next prime is 30212752573. The reversal of 30212752551 is 15525721203.

It is not a de Polignac number, because 30212752551 - 2² = 30212752547 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30212752541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7060216 + ... + 7064493.

It is an arithmetic number, because the mean of its divisors is an integer number (2711944320).

Almost surely, 2^30212752551 is an apocalyptic number.

30212752551 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

30212752551 is a deficient number, since it is larger than the sum of its proper divisors (13178356569).

30212752551 is a wasteful number, since it uses less digits than its factorization.

30212752551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14124766.

The product of its (nonzero) digits is 21000, while the sum is 33.

It can be divided in two parts, 3021 and 2752551, that added together give a palindrome (2755572).

The spelling of 30212752551 in words is "thirty billion, two hundred twelve million, seven hundred fifty-two thousand, five hundred fifty-one".