70000551 has 16 divisors (see below), whose sum is σ = 104715520. Its totient is φ = 46212120.

The previous prime is 70000549. The next prime is 70000589. The reversal of 70000551 is 15500007.

It is a happy number.

It is not a de Polignac number, because 70000551 - 2¹ = 70000549 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 (70000591) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9805 + ... + 15366.

It is an arithmetic number, because the mean of its divisors is an integer number (6544720).

Almost surely, 2^70000551 is an apocalyptic number.

70000551 is a deficient number, since it is larger than the sum of its proper divisors (34714969).

70000551 is a wasteful number, since it uses less digits than its factorization.

70000551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25283 (or 25277 counting only the distinct ones).

The product of its (nonzero) digits is 175, while the sum is 18.

The square root of 70000551 is about 8366.6331938241. The cubic root of 70000551 is about 412.1296113248.

Adding to 70000551 its reverse (15500007), we get a palindrome (85500558).

The spelling of 70000551 in words is "seventy million, five hundred fifty-one", and thus it is an aban number.