51814648 has 16 divisors (see below), whose sum is σ = 100503000. Its totient is φ = 25013856.

The previous prime is 51814621. The next prime is 51814649. The reversal of 51814648 is 84641815.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51814649) 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, 111438 + ... + 111901.

Almost surely, 2^51814648 is an apocalyptic number.

51814648 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

51814648 is a deficient number, since it is larger than the sum of its proper divisors (48688352).

51814648 is a wasteful number, since it uses less digits than its factorization.

51814648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223374 (or 223370 counting only the distinct ones).

The product of its digits is 30720, while the sum is 37.

The square root of 51814648 is about 7198.2392291449. The cubic root of 51814648 is about 372.8071079650.

The spelling of 51814648 in words is "fifty-one million, eight hundred fourteen thousand, six hundred forty-eight".