51549548 has 12 divisors (see below), whose sum is σ = 90901272. Its totient is φ = 25577760.

The previous prime is 51549517. The next prime is 51549551. The reversal of 51549548 is 84594515.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48665 + ... + 49712.

It is an arithmetic number, because the mean of its divisors is an integer number (7575106).

Almost surely, 2^51549548 is an apocalyptic number.

It is an amenable number.

51549548 is a deficient number, since it is larger than the sum of its proper divisors (39351724).

51549548 is a wasteful number, since it uses less digits than its factorization.

51549548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98512 (or 98510 counting only the distinct ones).

The product of its digits is 144000, while the sum is 41.

The square root of 51549548 is about 7179.8013900107. The cubic root of 51549548 is about 372.1702211689.

The spelling of 51549548 in words is "fifty-one million, five hundred forty-nine thousand, five hundred forty-eight".