52150665 has 32 divisors (see below), whose sum is σ = 96583680. Its totient is φ = 23534784.

The previous prime is 52150661. The next prime is 52150667. The reversal of 52150665 is 56605125.

52150665 = 148² + 149² + ... + 542².

It is not a de Polignac number, because 52150665 - 2² = 52150661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52150661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5152 + ... + 11438.

It is an arithmetic number, because the mean of its divisors is an integer number (3018240).

Almost surely, 2^52150665 is an apocalyptic number.

It is an amenable number.

52150665 is a deficient number, since it is larger than the sum of its proper divisors (44433015).

52150665 is a wasteful number, since it uses less digits than its factorization.

52150665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6381.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 52150665 is about 7221.5417328989. The cubic root of 52150665 is about 373.6112544889.

The spelling of 52150665 in words is "fifty-two million, one hundred fifty thousand, six hundred sixty-five".