53397557423 has 16 divisors (see below), whose sum is σ = 63377022720. Its totient is φ = 44037677376.

The previous prime is 53397557419. The next prime is 53397557431. The reversal of 53397557423 is 32475579335.

It is a happy number.

It is not a de Polignac number, because 53397557423 - 2² = 53397557419 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 (53397557453) 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, 1303718 + ... + 1344051.

It is an arithmetic number, because the mean of its divisors is an integer number (3961063920).

Almost surely, 2^53397557423 is an apocalyptic number.

53397557423 is a deficient number, since it is larger than the sum of its proper divisors (9979465297).

53397557423 is a wasteful number, since it uses less digits than its factorization.

53397557423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2647886.

The product of its digits is 11907000, while the sum is 53.

The spelling of 53397557423 in words is "fifty-three billion, three hundred ninety-seven million, five hundred fifty-seven thousand, four hundred twenty-three".