70055261 has 4 divisors (see below), whose sum is σ = 73742400. Its totient is φ = 66368124.

The previous prime is 70055233. The next prime is 70055269. The reversal of 70055261 is 16255007.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16255007 = 281 ⋅57847.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70055261 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70055261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70055269) 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, 1843541 + ... + 1843578.

It is an arithmetic number, because the mean of its divisors is an integer number (18435600).

Almost surely, 2^70055261 is an apocalyptic number.

It is an amenable number.

70055261 is a deficient number, since it is larger than the sum of its proper divisors (3687139).

70055261 is a wasteful number, since it uses less digits than its factorization.

70055261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3687138.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 70055261 is about 8369.9020902278. The cubic root of 70055261 is about 412.2369520962.

The spelling of 70055261 in words is "seventy million, fifty-five thousand, two hundred sixty-one".