53921701549 has 8 divisors (see below), whose sum is σ = 57143190528. Its totient is φ = 50705726400.

The previous prime is 53921701541. The next prime is 53921701553. The reversal of 53921701549 is 94510712935.

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 53921701549 - 2³ = 53921701541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53921701499 and 53921701508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53921701541) 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, 1358307 + ... + 1397440.

It is an arithmetic number, because the mean of its divisors is an integer number (7142898816).

Almost surely, 2^53921701549 is an apocalyptic number.

It is an amenable number.

53921701549 is a deficient number, since it is larger than the sum of its proper divisors (3221488979).

53921701549 is a wasteful number, since it uses less digits than its factorization.

53921701549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2756915.

The product of its (nonzero) digits is 340200, while the sum is 46.

The spelling of 53921701549 in words is "fifty-three billion, nine hundred twenty-one million, seven hundred one thousand, five hundred forty-nine".