52690111 has 4 divisors (see below), whose sum is σ = 54389824. Its totient is φ = 50990400.

The previous prime is 52690087. The next prime is 52690147. The reversal of 52690111 is 11109625.

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 52690111 - 2⁹ = 52689599 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 (52690711) 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, 849810 + ... + 849871.

It is an arithmetic number, because the mean of its divisors is an integer number (13597456).

Almost surely, 2^52690111 is an apocalyptic number.

52690111 is a deficient number, since it is larger than the sum of its proper divisors (1699713).

52690111 is a wasteful number, since it uses less digits than its factorization.

52690111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1699712.

The product of its (nonzero) digits is 540, while the sum is 25.

The square root of 52690111 is about 7258.7954234845. The cubic root of 52690111 is about 374.8950485559.

Adding to 52690111 its reverse (11109625), we get a palindrome (63799736).

The spelling of 52690111 in words is "fifty-two million, six hundred ninety thousand, one hundred eleven".