1054045521 has 16 divisors (see below), whose sum is σ = 1562373120. Its totient is φ = 702326160.

The previous prime is 1054045493. The next prime is 1054045523. The reversal of 1054045521 is 1255404501.

1054045521 is a `hidden beast` number, since 105 + 4 + 0 + 4 + 552 + 1 = 666.

It is not a de Polignac number, because 1054045521 - 2⁶ = 1054045457 is a prime.

It is a super-2 number, since 2×1054045521² = 2222023920680322882, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1054045523) 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, 47751 + ... + 66243.

It is an arithmetic number, because the mean of its divisors is an integer number (97648320).

Almost surely, 2^1054045521 is an apocalyptic number.

It is an amenable number.

1054045521 is a deficient number, since it is larger than the sum of its proper divisors (508327599).

1054045521 is a wasteful number, since it uses less digits than its factorization.

1054045521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20613 (or 20607 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 1054045521 is about 32466.0672241034. The cubic root of 1054045521 is about 1017.7000340400.

The spelling of 1054045521 in words is "one billion, fifty-four million, forty-five thousand, five hundred twenty-one".