52157005 has 4 divisors (see below), whose sum is σ = 62588412. Its totient is φ = 41725600.

The previous prime is 52156987. The next prime is 52157023. The reversal of 52157005 is 50075125.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (52156987) and next prime (52157023).

It can be written as a sum of positive squares in 2 ways, for example, as 38303721 + 13853284 = 6189^2 + 3722^2 .

It is not a de Polignac number, because 52157005 - 2¹⁹ = 51632717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5215696 + ... + 5215705.

It is an arithmetic number, because the mean of its divisors is an integer number (15647103).

Almost surely, 2^52157005 is an apocalyptic number.

It is an amenable number.

52157005 is a deficient number, since it is larger than the sum of its proper divisors (10431407).

52157005 is a wasteful number, since it uses less digits than its factorization.

52157005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10431406.

The product of its (nonzero) digits is 1750, while the sum is 25.

The square root of 52157005 is about 7221.9806839952. The cubic root of 52157005 is about 373.6263939530.

The spelling of 52157005 in words is "fifty-two million, one hundred fifty-seven thousand, five".