51376515 has 8 divisors (see below), whose sum is σ = 82202448. Its totient is φ = 27400800.

The previous prime is 51376489. The next prime is 51376519. The reversal of 51376515 is 51567315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51376515 - 2⁵ = 51376483 is a prime.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (51376519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1712536 + ... + 1712565.

It is an arithmetic number, because the mean of its divisors is an integer number (10275306).

Almost surely, 2^51376515 is an apocalyptic number.

51376515 is a deficient number, since it is larger than the sum of its proper divisors (30825933).

51376515 is a wasteful number, since it uses less digits than its factorization.

51376515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3425109.

The product of its digits is 15750, while the sum is 33.

The square root of 51376515 is about 7167.7412760227. The cubic root of 51376515 is about 371.7533412267.

It can be divided in two parts, 513 and 76515, that added together give a triangular number (77028 = T₃₉₂).

The spelling of 51376515 in words is "fifty-one million, three hundred seventy-six thousand, five hundred fifteen".