51149415 has 16 divisors (see below), whose sum is σ = 83182176. Its totient is φ = 26832000.

The previous prime is 51149383. The next prime is 51149431. The reversal of 51149415 is 51494115.

It is not a de Polignac number, because 51149415 - 2⁵ = 51149383 is a prime.

It is a congruent number.

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, 27036 + ... + 28865.

It is an arithmetic number, because the mean of its divisors is an integer number (5198886).

Almost surely, 2^51149415 is an apocalyptic number.

51149415 is a deficient number, since it is larger than the sum of its proper divisors (32032761).

51149415 is a wasteful number, since it uses less digits than its factorization.

51149415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55970.

The product of its digits is 3600, while the sum is 30.

The square root of 51149415 is about 7151.8819201662. The cubic root of 51149415 is about 371.2047774502.

The spelling of 51149415 in words is "fifty-one million, one hundred forty-nine thousand, four hundred fifteen".