70362561 has 4 divisors (see below), whose sum is σ = 93816752. Its totient is φ = 46908372.

The previous prime is 70362557. The next prime is 70362569. The reversal of 70362561 is 16526307.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 70362561 - 2² = 70362557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70362569) 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 3 ways as a sum of consecutive naturals, for example, 11727091 + ... + 11727096.

It is an arithmetic number, because the mean of its divisors is an integer number (23454188).

Almost surely, 2^70362561 is an apocalyptic number.

It is an amenable number.

70362561 is a deficient number, since it is larger than the sum of its proper divisors (23454191).

70362561 is a wasteful number, since it uses less digits than its factorization.

70362561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23454190.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 70362561 is about 8388.2394457955. The cubic root of 70362561 is about 412.8388371139.

Adding to 70362561 its reverse (16526307), we get a palindrome (86888868).

The spelling of 70362561 in words is "seventy million, three hundred sixty-two thousand, five hundred sixty-one".