553662561 has 8 divisors (see below), whose sum is σ = 758168704. Its totient is φ = 359132400.

The previous prime is 553662559. The next prime is 553662563. The reversal of 553662561 is 165266355.

It is an interprime number because it is at equal distance from previous prime (553662559) and next prime (553662563).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 553662561 - 2¹ = 553662559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (553662563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2493865 + ... + 2494086.

It is an arithmetic number, because the mean of its divisors is an integer number (94771088).

Almost surely, 2^553662561 is an apocalyptic number.

It is an amenable number.

553662561 is a deficient number, since it is larger than the sum of its proper divisors (204506143).

553662561 is a wasteful number, since it uses less digits than its factorization.

553662561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4987991.

The product of its digits is 162000, while the sum is 39.

The square root of 553662561 is about 23530.0352953411. The cubic root of 553662561 is about 821.1359237262.

The spelling of 553662561 in words is "five hundred fifty-three million, six hundred sixty-two thousand, five hundred sixty-one".