1553030115551 has 8 divisors (see below), whose sum is σ = 1578542703408. Its totient is φ = 1527519240000.

The previous prime is 1553030115473. The next prime is 1553030115557. The reversal of 1553030115551 is 1555110303551.

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

It is a cyclic number.

It is not a de Polignac number, because 1553030115551 - 2¹⁰ = 1553030114527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1553030115557) 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, 1469291 + ... + 2294531.

It is an arithmetic number, because the mean of its divisors is an integer number (197317837926).

Almost surely, 2^{1553030115551} is an apocalyptic number.

1553030115551 is a deficient number, since it is larger than the sum of its proper divisors (25512587857).

1553030115551 is an equidigital number, since it uses as much as digits as its factorization.

1553030115551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856153.

The product of its (nonzero) digits is 28125, while the sum is 35.

The spelling of 1553030115551 in words is "one trillion, five hundred fifty-three billion, thirty million, one hundred fifteen thousand, five hundred fifty-one".