70509051 has 12 divisors (see below), whose sum is σ = 102225760. Its totient is φ = 46830960.

The previous prime is 70509029. The next prime is 70509067. The reversal of 70509051 is 15090507.

It is not a de Polignac number, because 70509051 - 2¹⁵ = 70476283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70509851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12016 + ... + 16893.

Almost surely, 2^70509051 is an apocalyptic number.

70509051 is a deficient number, since it is larger than the sum of its proper divisors (31716709).

70509051 is a wasteful number, since it uses less digits than its factorization.

70509051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29186 (or 29183 counting only the distinct ones).

The product of its (nonzero) digits is 1575, while the sum is 27.

The square root of 70509051 is about 8396.9667737821. The cubic root of 70509051 is about 413.1251391822.

Adding to 70509051 its reverse (15090507), we get a palindrome (85599558).

The spelling of 70509051 in words is "seventy million, five hundred nine thousand, fifty-one".