70051061 has 4 divisors (see below), whose sum is σ = 70309824. Its totient is φ = 69792300.

The previous prime is 70051049. The next prime is 70051109. The reversal of 70051061 is 16015007.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70051061 is a prime.

It is a super-2 number, since 2×70051061² = 9814302294451442, 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 (70051561) 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, 128975 + ... + 129516.

It is an arithmetic number, because the mean of its divisors is an integer number (17577456).

Almost surely, 2^70051061 is an apocalyptic number.

It is an amenable number.

70051061 is a deficient number, since it is larger than the sum of its proper divisors (258763).

70051061 is a wasteful number, since it uses less digits than its factorization.

70051061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258762.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 70051061 is about 8369.6511874749. The cubic root of 70051061 is about 412.2287136962.

Adding to 70051061 its reverse (16015007), we get a palindrome (86066068).

The spelling of 70051061 in words is "seventy million, fifty-one thousand, sixty-one".