53455457653 has 8 divisors (see below), whose sum is σ = 57569223096. Its totient is φ = 49341950400.

The previous prime is 53455457651. The next prime is 53455457683. The reversal of 53455457653 is 35675455435.

53455457653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1700572644 + 51754885009 = 41238^2 + 227497^2 .

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 53455457653 - 2¹ = 53455457651 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53455457653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53455457651) 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, 707943 + ... + 779803.

It is an arithmetic number, because the mean of its divisors is an integer number (7196152887).

Almost surely, 2^53455457653 is an apocalyptic number.

It is an amenable number.

53455457653 is a deficient number, since it is larger than the sum of its proper divisors (4113765443).

53455457653 is a wasteful number, since it uses less digits than its factorization.

53455457653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129095.

The product of its digits is 18900000, while the sum is 52.

The spelling of 53455457653 in words is "fifty-three billion, four hundred fifty-five million, four hundred fifty-seven thousand, six hundred fifty-three".