51034487 has 4 divisors (see below), whose sum is σ = 58325136. Its totient is φ = 43743840.

The previous prime is 51034483. The next prime is 51034499. The reversal of 51034487 is 78443015.

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

It is not a de Polignac number, because 51034487 - 2² = 51034483 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51034483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3645314 + ... + 3645327.

It is an arithmetic number, because the mean of its divisors is an integer number (14581284).

Almost surely, 2^51034487 is an apocalyptic number.

51034487 is a deficient number, since it is larger than the sum of its proper divisors (7290649).

51034487 is an equidigital number, since it uses as much as digits as its factorization.

51034487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7290648.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 51034487 is about 7143.8425934507. The cubic root of 51034487 is about 370.9265480381.

The spelling of 51034487 in words is "fifty-one million, thirty-four thousand, four hundred eighty-seven".