70257563 has 8 divisors (see below), whose sum is σ = 72800256. Its totient is φ = 67732200.

The previous prime is 70257541. The next prime is 70257569. The reversal of 70257563 is 36575207.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70257563 - 2¹² = 70253467 is a prime.

It is a super-2 number, since 2×70257563² = 9872250317397938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70257569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4220 + ... + 12582.

It is an arithmetic number, because the mean of its divisors is an integer number (9100032).

Almost surely, 2^70257563 is an apocalyptic number.

70257563 is a deficient number, since it is larger than the sum of its proper divisors (2542693).

70257563 is a wasteful number, since it uses less digits than its factorization.

70257563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8665.

The product of its (nonzero) digits is 44100, while the sum is 35.

The square root of 70257563 is about 8381.9784657323. The cubic root of 70257563 is about 412.6333830058.

The spelling of 70257563 in words is "seventy million, two hundred fifty-seven thousand, five hundred sixty-three".