30142251402555 has 128 divisors (see below), whose sum is σ = 55497259745280. Its totient is φ = 13868718151680.

The previous prime is 30142251402547. The next prime is 30142251402577. The reversal of 30142251402555 is 55520415224103.

It is not a de Polignac number, because 30142251402555 - 2³ = 30142251402547 is a prime.

It is a super-2 number, since 2×30142251402555² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 868560334 + ... + 868595036.

It is an arithmetic number, because the mean of its divisors is an integer number (433572341760).

Almost surely, 2^{30142251402555} is an apocalyptic number.

30142251402555 is a deficient number, since it is larger than the sum of its proper divisors (25355008342725).

30142251402555 is a wasteful number, since it uses less digits than its factorization.

30142251402555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40561.

The product of its (nonzero) digits is 240000, while the sum is 39.

Adding to 30142251402555 its reverse (55520415224103), we get a palindrome (85662666626658).

The spelling of 30142251402555 in words is "thirty trillion, one hundred forty-two billion, two hundred fifty-one million, four hundred two thousand, five hundred fifty-five".