23557903357 has 8 divisors (see below), whose sum is σ = 25352575992. Its totient is φ = 21808665600.

The previous prime is 23557903333. The next prime is 23557903361. The reversal of 23557903357 is 75330975532.

It can be written as a sum of positive squares in 4 ways, for example, as 1683789156 + 21874114201 = 41034^2 + 147899^2 .

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 23557903357 - 2¹¹ = 23557901309 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 23557903357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23557903307) 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, 11357644 + ... + 11359717.

It is an arithmetic number, because the mean of its divisors is an integer number (3169071999).

Almost surely, 2^23557903357 is an apocalyptic number.

It is an amenable number.

23557903357 is a deficient number, since it is larger than the sum of its proper divisors (1794672635).

23557903357 is a wasteful number, since it uses less digits than its factorization.

23557903357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22717439.

The product of its (nonzero) digits is 2976750, while the sum is 49.

The spelling of 23557903357 in words is "twenty-three billion, five hundred fifty-seven million, nine hundred three thousand, three hundred fifty-seven".