1054551540 has 72 divisors (see below), whose sum is σ = 3434834592. Its totient is φ = 241039680.

The previous prime is 1054551527. The next prime is 1054551559. The reversal of 1054551540 is 451554501.

It is a super-2 number, since 2×1054551540² = 2224157901032743200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1054551498 and 1054551507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 176406 + ... + 182285.

It is an arithmetic number, because the mean of its divisors is an integer number (47706036).

Almost surely, 2^1054551540 is an apocalyptic number.

1054551540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1054551540 is an abundant number, since it is smaller than the sum of its proper divisors (2380283052).

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

1054551540 is a wasteful number, since it uses less digits than its factorization.

1054551540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358717 (or 358708 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 30.

The square root of 1054551540 is about 32473.8593333161. The cubic root of 1054551540 is about 1017.8628648212.

The spelling of 1054551540 in words is "one billion, fifty-four million, five hundred fifty-one thousand, five hundred forty".