51849465 has 16 divisors (see below), whose sum is σ = 83094336. Its totient is φ = 27608000.

The previous prime is 51849449. The next prime is 51849487. The reversal of 51849465 is 56494815.

It is not a de Polignac number, because 51849465 - 2⁴ = 51849449 is a prime.

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, 8050 + ... + 12980.

It is an arithmetic number, because the mean of its divisors is an integer number (5193396).

Almost surely, 2^51849465 is an apocalyptic number.

It is an amenable number.

51849465 is a deficient number, since it is larger than the sum of its proper divisors (31244871).

51849465 is a wasteful number, since it uses less digits than its factorization.

51849465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5640.

The product of its digits is 172800, while the sum is 42.

The square root of 51849465 is about 7200.6572616672. The cubic root of 51849465 is about 372.8905922005.

The spelling of 51849465 in words is "fifty-one million, eight hundred forty-nine thousand, four hundred sixty-five".