70880251 has 4 divisors (see below), whose sum is σ = 76332592. Its totient is φ = 65427912.

The previous prime is 70880237. The next prime is 70880261. The reversal of 70880251 is 15208807.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70880251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70880221) 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, 2726151 + ... + 2726176.

It is an arithmetic number, because the mean of its divisors is an integer number (19083148).

Almost surely, 2^70880251 is an apocalyptic number.

70880251 is a deficient number, since it is larger than the sum of its proper divisors (5452341).

70880251 is a wasteful number, since it uses less digits than its factorization.

70880251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5452340.

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 70880251 is about 8419.0409786388. The cubic root of 70880251 is about 413.8488463888.

The spelling of 70880251 in words is "seventy million, eight hundred eighty thousand, two hundred fifty-one".