553545505511551 has 16 divisors (see below), whose sum is σ = 632880088473600. Its totient is φ = 474275107994688.

The previous prime is 553545505511543. The next prime is 553545505511563. The reversal of 553545505511551 is 155115505545355.

It is not a de Polignac number, because 553545505511551 - 2³ = 553545505511543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 553545505511492 and 553545505511501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553545505571551) 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, 303332626 + ... + 305152048.

It is an arithmetic number, because the mean of its divisors is an integer number (39555005529600).

Almost surely, 2^{553545505511551} is an apocalyptic number.

553545505511551 is a deficient number, since it is larger than the sum of its proper divisors (79334582962049).

553545505511551 is a wasteful number, since it uses less digits than its factorization.

553545505511551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1837038.

The product of its (nonzero) digits is 23437500, while the sum is 55.

The spelling of 553545505511551 in words is "five hundred fifty-three trillion, five hundred forty-five billion, five hundred five million, five hundred eleven thousand, five hundred fifty-one".