53900544649 has 16 divisors (see below), whose sum is σ = 66595273600. Its totient is φ = 42585917184.

The previous prime is 53900544637. The next prime is 53900544673. The reversal of 53900544649 is 94644500935.

It is a cyclic number.

It is not a de Polignac number, because 53900544649 - 2⁵ = 53900544617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53900544349) 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, 5471664 + ... + 5481505.

It is an arithmetic number, because the mean of its divisors is an integer number (4162204600).

Almost surely, 2^53900544649 is an apocalyptic number.

It is an amenable number.

53900544649 is a deficient number, since it is larger than the sum of its proper divisors (12694728951).

53900544649 is a wasteful number, since it uses less digits than its factorization.

53900544649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10953232.

The product of its (nonzero) digits is 2332800, while the sum is 49.

The spelling of 53900544649 in words is "fifty-three billion, nine hundred million, five hundred forty-four thousand, six hundred forty-nine".