51414515 has 4 divisors (see below), whose sum is σ = 61697424. Its totient is φ = 41131608.

The previous prime is 51414509. The next prime is 51414577. The reversal of 51414515 is 51541415.

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

It is a cyclic number.

It is not a de Polignac number, because 51414515 - 2²² = 47220211 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5141447 + ... + 5141456.

It is an arithmetic number, because the mean of its divisors is an integer number (15424356).

Almost surely, 2^51414515 is an apocalyptic number.

51414515 is a deficient number, since it is larger than the sum of its proper divisors (10282909).

51414515 is a wasteful number, since it uses less digits than its factorization.

51414515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10282908.

The product of its digits is 2000, while the sum is 26.

The square root of 51414515 is about 7170.3915513729. The cubic root of 51414515 is about 371.8449728833.

The spelling of 51414515 in words is "fifty-one million, four hundred fourteen thousand, five hundred fifteen".