53552156473021 has 8 divisors (see below), whose sum is σ = 53812006354944. Its totient is φ = 53292803913120.

The previous prime is 53552156472959. The next prime is 53552156473093. The reversal of 53552156473021 is 12037465125535.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53552156473021 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 (53552156477021) 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, 124114621 + ... + 124545346.

It is an arithmetic number, because the mean of its divisors is an integer number (6726500794368).

Almost surely, 2^{53552156473021} is an apocalyptic number.

It is an amenable number.

53552156473021 is a deficient number, since it is larger than the sum of its proper divisors (259849881923).

53552156473021 is a wasteful number, since it uses less digits than its factorization.

53552156473021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248661011.

The product of its (nonzero) digits is 3780000, while the sum is 49.

The spelling of 53552156473021 in words is "fifty-three trillion, five hundred fifty-two billion, one hundred fifty-six million, four hundred seventy-three thousand, twenty-one".