70015057 has 8 divisors (see below), whose sum is σ = 84228800. Its totient is φ = 56854224.

The previous prime is 70015039. The next prime is 70015069. The reversal of 70015057 is 75051007.

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

It is not a de Polignac number, because 70015057 - 2⁷ = 70014929 is a prime.

It is the 8368-th Hogben number.

It is a Duffinian number.

70015057 is a modest number, since divided by 15057 gives 7 as remainder.

It is not an unprimeable number, because it can be changed into a prime (70015037) by changing a digit.

It is a nontrivial repunit in base 8367.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263082 + ... + 263347.

It is an arithmetic number, because the mean of its divisors is an integer number (10528600).

Almost surely, 2^70015057 is an apocalyptic number.

It is an amenable number.

70015057 is a deficient number, since it is larger than the sum of its proper divisors (14213743).

70015057 is a wasteful number, since it uses less digits than its factorization.

70015057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526455.

The product of its (nonzero) digits is 1225, while the sum is 25.

The square root of 70015057 is about 8367.5000448163. The cubic root of 70015057 is about 412.1580774780.

The spelling of 70015057 in words is "seventy million, fifteen thousand, fifty-seven".