2155412251254 has 32 divisors (see below), whose sum is σ = 4545440484480. Its totient is φ = 679496928192.

The previous prime is 2155412251247. The next prime is 2155412251283. The reversal of 2155412251254 is 4521522145512.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16037959 + ... + 16171794.

It is an arithmetic number, because the mean of its divisors is an integer number (142045015140).

Almost surely, 2^{2155412251254} is an apocalyptic number.

2155412251254 is an abundant number, since it is smaller than the sum of its proper divisors (2390028233226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2155412251254 is a wasteful number, since it uses less digits than its factorization.

2155412251254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32210364.

The product of its digits is 160000, while the sum is 39.

Adding to 2155412251254 its reverse (4521522145512), we get a palindrome (6676934396766).

The spelling of 2155412251254 in words is "two trillion, one hundred fifty-five billion, four hundred twelve million, two hundred fifty-one thousand, two hundred fifty-four".