538311653 has 4 divisors (see below), whose sum is σ = 587249088. Its totient is φ = 489374220.

The previous prime is 538311649. The next prime is 538311671. The reversal of 538311653 is 356113835.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 538311653 - 2² = 538311649 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 (538311643) 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, 24468701 + ... + 24468722.

It is an arithmetic number, because the mean of its divisors is an integer number (146812272).

Almost surely, 2^538311653 is an apocalyptic number.

It is an amenable number.

538311653 is a deficient number, since it is larger than the sum of its proper divisors (48937435).

538311653 is a wasteful number, since it uses less digits than its factorization.

538311653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48937434.

The product of its digits is 32400, while the sum is 35.

The square root of 538311653 is about 23201.5441942988. The cubic root of 538311653 is about 813.4757176856.

The spelling of 538311653 in words is "five hundred thirty-eight million, three hundred eleven thousand, six hundred fifty-three".