30215252500455 has 16 divisors (see below), whose sum is σ = 52739349819264. Its totient is φ = 14649819394080.

The previous prime is 30215252500453. The next prime is 30215252500571. The reversal of 30215252500455 is 55400525251203.

It is not a de Polignac number, because 30215252500455 - 2¹ = 30215252500453 is a prime.

It is a super-2 number, since 2×30215252500455² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30215252500451) 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, 91561371049 + ... + 91561371378.

It is an arithmetic number, because the mean of its divisors is an integer number (3296209363704).

Almost surely, 2^{30215252500455} is an apocalyptic number.

30215252500455 is a deficient number, since it is larger than the sum of its proper divisors (22524097318809).

30215252500455 is a wasteful number, since it uses less digits than its factorization.

30215252500455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183122742446.

The product of its (nonzero) digits is 300000, while the sum is 39.

Adding to 30215252500455 its reverse (55400525251203), we get a palindrome (85615777751658).

The spelling of 30215252500455 in words is "thirty trillion, two hundred fifteen billion, two hundred fifty-two million, five hundred thousand, four hundred fifty-five".