52390534 has 16 divisors (see below), whose sum is σ = 89941248. Its totient is φ = 22420872.

The previous prime is 52390519. The next prime is 52390537. The reversal of 52390534 is 43509325.

It is a junction number, because it is equal to n+sod(n) for n = 52390496 and 52390505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52390537) 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, 9249 + ... + 13795.

It is an arithmetic number, because the mean of its divisors is an integer number (5621328).

Almost surely, 2^52390534 is an apocalyptic number.

52390534 is a deficient number, since it is larger than the sum of its proper divisors (37550714).

52390534 is a wasteful number, since it uses less digits than its factorization.

52390534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5379.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 52390534 is about 7238.1305597509. The cubic root of 52390534 is about 374.1831916375.

Adding to 52390534 its reverse (43509325), we get a palindrome (95899859).

The spelling of 52390534 in words is "fifty-two million, three hundred ninety thousand, five hundred thirty-four".