52247901 has 4 divisors (see below), whose sum is σ = 69663872. Its totient is φ = 34831932.

The previous prime is 52247887. The next prime is 52247917. The reversal of 52247901 is 10974225.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 52247901 - 2⁹ = 52247389 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52247941) 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, 8707981 + ... + 8707986.

It is an arithmetic number, because the mean of its divisors is an integer number (17415968).

Almost surely, 2^52247901 is an apocalyptic number.

It is an amenable number.

52247901 is a deficient number, since it is larger than the sum of its proper divisors (17415971).

52247901 is a wasteful number, since it uses less digits than its factorization.

52247901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17415970.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 52247901 is about 7228.2709550763. The cubic root of 52247901 is about 373.8433123090.

The spelling of 52247901 in words is "fifty-two million, two hundred forty-seven thousand, nine hundred one".