53070818 has 4 divisors (see below), whose sum is σ = 79606230. Its totient is φ = 26535408.

The previous prime is 53070817. The next prime is 53070833. The reversal of 53070818 is 81807035.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81807035 = 5 ⋅16361407.

It can be written as a sum of positive squares in only one way, i.e., 51940849 + 1129969 = 7207^2 + 1063^2 .

It is not an unprimeable number, because it can be changed into a prime (53070811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13267703 + ... + 13267706.

Almost surely, 2^53070818 is an apocalyptic number.

53070818 is a deficient number, since it is larger than the sum of its proper divisors (26535412).

53070818 is a wasteful number, since it uses less digits than its factorization.

53070818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26535411.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 53070818 is about 7284.9720658353. The cubic root of 53070818 is about 375.7958045110.

The spelling of 53070818 in words is "fifty-three million, seventy thousand, eight hundred eighteen".