52545215551 has 8 divisors (see below), whose sum is σ = 53837149520. Its totient is φ = 51256461312.

The previous prime is 52545215519. The next prime is 52545215627. The reversal of 52545215551 is 15551254525.

It is a happy number.

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 52545215551 - 2⁵ = 52545215519 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 (52545215351) 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, 761460 + ... + 827593.

It is an arithmetic number, because the mean of its divisors is an integer number (6729643690).

Almost surely, 2^52545215551 is an apocalyptic number.

52545215551 is a deficient number, since it is larger than the sum of its proper divisors (1291933969).

52545215551 is a wasteful number, since it uses less digits than its factorization.

52545215551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1589865.

The product of its digits is 250000, while the sum is 40.

The spelling of 52545215551 in words is "fifty-two billion, five hundred forty-five million, two hundred fifteen thousand, five hundred fifty-one".