1054521550215 has 48 divisors (see below), whose sum is σ = 2108121787200. Its totient is φ = 477644345856.

The previous prime is 1054521550213. The next prime is 1054521550283. The reversal of 1054521550215 is 5120551254501.

1054521550215 is a `hidden beast` number, since 1 + 0 + 54 + 52 + 1 + 550 + 2 + 1 + 5 = 666.

It is not a de Polignac number, because 1054521550215 - 2¹ = 1054521550213 is a prime.

It is a super-2 number, since 2×1054521550215² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1054521550215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1054521550213) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15322030 + ... + 15390699.

It is an arithmetic number, because the mean of its divisors is an integer number (43919203900).

Almost surely, 2^{1054521550215} is an apocalyptic number.

1054521550215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1054521550215 is a deficient number, since it is larger than the sum of its proper divisors (1053600236985).

1054521550215 is a wasteful number, since it uses less digits than its factorization.

1054521550215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30712856 (or 30712853 counting only the distinct ones).

The product of its (nonzero) digits is 50000, while the sum is 36.

It can be divided in two parts, 1054521 and 550215, that added together give a triangular number (1604736 = T₁₇₉₁).

The spelling of 1054521550215 in words is "one trillion, fifty-four billion, five hundred twenty-one million, five hundred fifty thousand, two hundred fifteen".