52154402123 has 4 divisors (see below), whose sum is σ = 54421984848. Its totient is φ = 49886819400.

The previous prime is 52154402087. The next prime is 52154402143. The reversal of 52154402123 is 32120445125.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52154402123 - 2⁶ = 52154402059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52154402143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1133791328 + ... + 1133791373.

It is an arithmetic number, because the mean of its divisors is an integer number (13605496212).

Almost surely, 2^52154402123 is an apocalyptic number.

52154402123 is a deficient number, since it is larger than the sum of its proper divisors (2267582725).

52154402123 is a wasteful number, since it uses less digits than its factorization.

52154402123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2267582724.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 52154402123 its reverse (32120445125), we get a palindrome (84274847248).

The spelling of 52154402123 in words is "fifty-two billion, one hundred fifty-four million, four hundred two thousand, one hundred twenty-three".