29955258133531 has 16 divisors (see below), whose sum is σ = 31273195377600. Its totient is φ = 28656332627328.

The previous prime is 29955258133523. The next prime is 29955258133553. The reversal of 29955258133531 is 13533185255992.

It is a cyclic number.

It is not a de Polignac number, because 29955258133531 - 2³ = 29955258133523 is a prime.

It is a super-2 number, since 2×29955258133531² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 29955258133531.

It is not an unprimeable number, because it can be changed into a prime (29955258131531) 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, 200734261 + ... + 200883433.

It is an arithmetic number, because the mean of its divisors is an integer number (1954574711100).

Almost surely, 2^{29955258133531} is an apocalyptic number.

29955258133531 is a deficient number, since it is larger than the sum of its proper divisors (1317937244069).

29955258133531 is a wasteful number, since it uses less digits than its factorization.

29955258133531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212838.

The product of its digits is 43740000, while the sum is 61.

The spelling of 29955258133531 in words is "twenty-nine trillion, nine hundred fifty-five billion, two hundred fifty-eight million, one hundred thirty-three thousand, five hundred thirty-one".