70252571 has 4 divisors (see below), whose sum is σ = 70897200. Its totient is φ = 69607944.

The previous prime is 70252547. The next prime is 70252573. The reversal of 70252571 is 17525207.

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

It is a cyclic number.

It is not a de Polignac number, because 70252571 - 2¹⁰ = 70251547 is a prime.

It is a super-2 number, since 2×70252571² = 9870847464220082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70252573) 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, 322151 + ... + 322368.

It is an arithmetic number, because the mean of its divisors is an integer number (17724300).

Almost surely, 2^70252571 is an apocalyptic number.

70252571 is a deficient number, since it is larger than the sum of its proper divisors (644629).

70252571 is a wasteful number, since it uses less digits than its factorization.

70252571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644628.

The product of its (nonzero) digits is 4900, while the sum is 29.

The square root of 70252571 is about 8381.6806787183. The cubic root of 70252571 is about 412.6236098485.

Adding to 70252571 its reverse (17525207), we get a palindrome (87777778).

The spelling of 70252571 in words is "seventy million, two hundred fifty-two thousand, five hundred seventy-one".