1054506056621 has 4 divisors (see below), whose sum is σ = 1054508347200. Its totient is φ = 1054503766044.

The previous prime is 1054506056557. The next prime is 1054506056647. The reversal of 1054506056621 is 1266506054501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1054506056621 - 2⁶ = 1054506056557 is a prime.

It is a super-2 number, since 2×1054506056621² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1054506056521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188051 + ... + 1464368.

It is an arithmetic number, because the mean of its divisors is an integer number (263627086800).

Almost surely, 2^{1054506056621} is an apocalyptic number.

It is an amenable number.

1054506056621 is a deficient number, since it is larger than the sum of its proper divisors (2290579).

1054506056621 is an equidigital number, since it uses as much as digits as its factorization.

1054506056621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2290578.

The product of its (nonzero) digits is 216000, while the sum is 41.

The spelling of 1054506056621 in words is "one trillion, fifty-four billion, five hundred six million, fifty-six thousand, six hundred twenty-one".