53440132351 has 8 divisors (see below), whose sum is σ = 53588432304. Its totient is φ = 53292008640.

The previous prime is 53440132283. The next prime is 53440132429. The reversal of 53440132351 is 15323104435.

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-53440132351 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 (53440132651) 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, 575221 + ... + 661633.

It is an arithmetic number, because the mean of its divisors is an integer number (6698554038).

Almost surely, 2^53440132351 is an apocalyptic number.

53440132351 is a deficient number, since it is larger than the sum of its proper divisors (148299953).

53440132351 is a wasteful number, since it uses less digits than its factorization.

53440132351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88121.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 53440132351 its reverse (15323104435), we get a palindrome (68763236786).

The spelling of 53440132351 in words is "fifty-three billion, four hundred forty million, one hundred thirty-two thousand, three hundred fifty-one".