51670115 has 16 divisors (see below), whose sum is σ = 70979520. Its totient is φ = 35372160.

The previous prime is 51670103. The next prime is 51670163. The reversal of 51670115 is 51107615.

It is not a de Polignac number, because 51670115 - 2¹⁰ = 51669091 is a prime.

It is a super-2 number, since 2×51670115² = 5339601568226450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36725 + ... + 38105.

It is an arithmetic number, because the mean of its divisors is an integer number (4436220).

Almost surely, 2^51670115 is an apocalyptic number.

51670115 is a deficient number, since it is larger than the sum of its proper divisors (19309405).

51670115 is a wasteful number, since it uses less digits than its factorization.

51670115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2462.

The product of its (nonzero) digits is 1050, while the sum is 26.

The square root of 51670115 is about 7188.1927492242. The cubic root of 51670115 is about 372.4601461799.

Subtracting from 51670115 its reverse (51107615), we obtain a square (562500 = 750²).

The spelling of 51670115 in words is "fifty-one million, six hundred seventy thousand, one hundred fifteen".