52570087 has 4 divisors (see below), whose sum is σ = 52588456. Its totient is φ = 52551720.

The previous prime is 52570061. The next prime is 52570129. The reversal of 52570087 is 78007525.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52570087 is a prime.

It is a super-2 number, since 2×52570087² = 5527228094375138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52570187) 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, 3864 + ... + 10957.

It is an arithmetic number, because the mean of its divisors is an integer number (13147114).

Almost surely, 2^52570087 is an apocalyptic number.

52570087 is a deficient number, since it is larger than the sum of its proper divisors (18369).

52570087 is a wasteful number, since it uses less digits than its factorization.

52570087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18368.

The product of its (nonzero) digits is 19600, while the sum is 34.

The square root of 52570087 is about 7250.5232224992. The cubic root of 52570087 is about 374.6101714896.

The spelling of 52570087 in words is "fifty-two million, five hundred seventy thousand, eighty-seven".