52491111 has 8 divisors (see below), whose sum is σ = 71695344. Its totient is φ = 34140480.

The previous prime is 52491077. The next prime is 52491113. The reversal of 52491111 is 11119425.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52491111 - 2⁷ = 52490983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52491113) 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, 213256 + ... + 213501.

It is an arithmetic number, because the mean of its divisors is an integer number (8961918).

Almost surely, 2^52491111 is an apocalyptic number.

52491111 is a deficient number, since it is larger than the sum of its proper divisors (19204233).

52491111 is a wasteful number, since it uses less digits than its factorization.

52491111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426801.

The product of its digits is 360, while the sum is 24.

The square root of 52491111 is about 7245.0749478525. The cubic root of 52491111 is about 374.4224852835.

The spelling of 52491111 in words is "fifty-two million, four hundred ninety-one thousand, one hundred eleven".