52319690 has 16 divisors (see below), whose sum is σ = 96473160. Its totient is φ = 20417280.

The previous prime is 52319669. The next prime is 52319713. The reversal of 52319690 is 9691325.

It can be written as a sum of positive squares in 4 ways, for example, as 13169641 + 39150049 = 3629^2 + 6257^2 .

It is a super-2 number, since 2×52319690² = 5474699923392200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 52319690.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63395 + ... + 64214.

Almost surely, 2^52319690 is an apocalyptic number.

52319690 is a deficient number, since it is larger than the sum of its proper divisors (44153470).

52319690 is a wasteful number, since it uses less digits than its factorization.

52319690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127657.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 52319690 is about 7233.2350991793. The cubic root of 52319690 is about 374.0144551020.

The spelling of 52319690 in words is "fifty-two million, three hundred nineteen thousand, six hundred ninety".