70250091 has 8 divisors (see below), whose sum is σ = 93877200. Its totient is φ = 46728192.

The previous prime is 70250083. The next prime is 70250107. The reversal of 70250091 is 19005207.

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

It is not a de Polignac number, because 70250091 - 2³ = 70250083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70250071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24730 + ... + 27423.

It is an arithmetic number, because the mean of its divisors is an integer number (11734650).

Almost surely, 2^70250091 is an apocalyptic number.

70250091 is a deficient number, since it is larger than the sum of its proper divisors (23627109).

70250091 is a wasteful number, since it uses less digits than its factorization.

70250091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52605.

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 70250091 is about 8381.5327357232. The cubic root of 70250091 is about 412.6187544220.

Adding to 70250091 its reverse (19005207), we get a palindrome (89255298).

The spelling of 70250091 in words is "seventy million, two hundred fifty thousand, ninety-one".