53553251555 has 4 divisors (see below), whose sum is σ = 64263901872. Its totient is φ = 42842601240.

The previous prime is 53553251527. The next prime is 53553251561. The reversal of 53553251555 is 55515235535.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 53553251555 - 2⁸ = 53553251299 is a prime.

It is a super-2 number, since 2×53553251555² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5355325151 + ... + 5355325160.

It is an arithmetic number, because the mean of its divisors is an integer number (16065975468).

Almost surely, 2^53553251555 is an apocalyptic number.

53553251555 is a deficient number, since it is larger than the sum of its proper divisors (10710650317).

53553251555 is a wasteful number, since it uses less digits than its factorization.

53553251555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10710650316.

The product of its digits is 1406250, while the sum is 44.

The spelling of 53553251555 in words is "fifty-three billion, five hundred fifty-three million, two hundred fifty-one thousand, five hundred fifty-five".