52000397 has 4 divisors (see below), whose sum is σ = 54737280. Its totient is φ = 49263516.

The previous prime is 52000391. The next prime is 52000409. The reversal of 52000397 is 79300025.

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 a cyclic number.

It is not a de Polignac number, because 52000397 - 2²² = 47806093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52000391) 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, 1368413 + ... + 1368450.

It is an arithmetic number, because the mean of its divisors is an integer number (13684320).

Almost surely, 2^52000397 is an apocalyptic number.

It is an amenable number.

52000397 is a deficient number, since it is larger than the sum of its proper divisors (2736883).

52000397 is a wasteful number, since it uses less digits than its factorization.

52000397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2736882.

The product of its (nonzero) digits is 1890, while the sum is 26.

The square root of 52000397 is about 7211.1300778727. The cubic root of 52000397 is about 373.2520655555.

The spelling of 52000397 in words is "fifty-two million, three hundred ninety-seven", and thus it is an aban number.