52297990 has 8 divisors (see below), whose sum is σ = 94136400. Its totient is φ = 20919192.

The previous prime is 52297979. The next prime is 52297997. The reversal of 52297990 is 9979225.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52297997) 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, 2614890 + ... + 2614909.

It is an arithmetic number, because the mean of its divisors is an integer number (11767050).

Almost surely, 2^52297990 is an apocalyptic number.

52297990 is a deficient number, since it is larger than the sum of its proper divisors (41838410).

52297990 is a wasteful number, since it uses less digits than its factorization.

52297990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5229806.

The product of its (nonzero) digits is 102060, while the sum is 43.

The square root of 52297990 is about 7231.7349232394. The cubic root of 52297990 is about 373.9627394796.

The spelling of 52297990 in words is "fifty-two million, two hundred ninety-seven thousand, nine hundred ninety".