51548427 has 32 divisors (see below), whose sum is σ = 88128000. Its totient is φ = 29169504.

The previous prime is 51548423. The next prime is 51548429. The reversal of 51548427 is 72484515.

It is not a de Polignac number, because 51548427 - 2² = 51548423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51548391 and 51548400.

It is not an unprimeable number, because it can be changed into a prime (51548423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18949 + ... + 21497.

It is an arithmetic number, because the mean of its divisors is an integer number (2754000).

Almost surely, 2^51548427 is an apocalyptic number.

51548427 is a deficient number, since it is larger than the sum of its proper divisors (36579573).

51548427 is a wasteful number, since it uses less digits than its factorization.

51548427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2672 (or 2666 counting only the distinct ones).

The product of its digits is 44800, while the sum is 36.

The square root of 51548427 is about 7179.7233233600. The cubic root of 51548427 is about 372.1675234029.

The spelling of 51548427 in words is "fifty-one million, five hundred forty-eight thousand, four hundred twenty-seven".