52391486 has 12 divisors (see below), whose sum is σ = 91417968. Its totient is φ = 22453452.

The previous prime is 52391483. The next prime is 52391489. The reversal of 52391486 is 68419325.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (52391483) and next prime (52391489).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52391483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 267206 + ... + 267401.

It is an arithmetic number, because the mean of its divisors is an integer number (7618164).

Almost surely, 2^52391486 is an apocalyptic number.

52391486 is a deficient number, since it is larger than the sum of its proper divisors (39026482).

52391486 is a wasteful number, since it uses less digits than its factorization.

52391486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534623 (or 534616 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The square root of 52391486 is about 7238.1963222891. The cubic root of 52391486 is about 374.1854580790.

The spelling of 52391486 in words is "fifty-two million, three hundred ninety-one thousand, four hundred eighty-six".