70048521 has 6 divisors (see below), whose sum is σ = 101181210. Its totient is φ = 46699008.

The previous prime is 70048519. The next prime is 70048571. The reversal of 70048521 is 12584007.

It can be written as a sum of positive squares in only one way, i.e., 45158400 + 24890121 = 6720^2 + 4989^2 .

It is not a de Polignac number, because 70048521 - 2¹ = 70048519 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (70048571) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3891576 + ... + 3891593.

It is an arithmetic number, because the mean of its divisors is an integer number (16863535).

Almost surely, 2^70048521 is an apocalyptic number.

It is an amenable number.

70048521 is a deficient number, since it is larger than the sum of its proper divisors (31132689).

70048521 is a wasteful number, since it uses less digits than its factorization.

70048521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7783175 (or 7783172 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 70048521 is about 8369.4994473983. The cubic root of 70048521 is about 412.2237312659.

The spelling of 70048521 in words is "seventy million, forty-eight thousand, five hundred twenty-one".