70854557 has 4 divisors (see below), whose sum is σ = 70871580. Its totient is φ = 70837536.

The previous prime is 70854533. The next prime is 70854599. The reversal of 70854557 is 75545807.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 38204761 + 32649796 = 6181^2 + 5714^2 .

It is a cyclic number.

It is not a de Polignac number, because 70854557 - 2⁶ = 70854493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70854757) 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, 2369 + ... + 12137.

It is an arithmetic number, because the mean of its divisors is an integer number (17717895).

Almost surely, 2^70854557 is an apocalyptic number.

It is an amenable number.

70854557 is a deficient number, since it is larger than the sum of its proper divisors (17023).

70854557 is an equidigital number, since it uses as much as digits as its factorization.

70854557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17022.

The product of its (nonzero) digits is 196000, while the sum is 41.

The square root of 70854557 is about 8417.5148945517. The cubic root of 70854557 is about 413.7988337866.

The spelling of 70854557 in words is "seventy million, eight hundred fifty-four thousand, five hundred fifty-seven".