51463534 has 16 divisors (see below), whose sum is σ = 80027136. Its totient is φ = 24795000.

The previous prime is 51463519. The next prime is 51463537. The reversal of 51463534 is 43536415.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 51463496 and 51463505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51463537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13909 + ... + 17215.

It is an arithmetic number, because the mean of its divisors is an integer number (5001696).

Almost surely, 2^51463534 is an apocalyptic number.

51463534 is a deficient number, since it is larger than the sum of its proper divisors (28563602).

51463534 is a wasteful number, since it uses less digits than its factorization.

51463534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3591.

The product of its digits is 21600, while the sum is 31.

The square root of 51463534 is about 7173.8088906800. The cubic root of 51463534 is about 371.9631086474.

Adding to 51463534 its reverse (43536415), we get a palindrome (94999949).

The spelling of 51463534 in words is "fifty-one million, four hundred sixty-three thousand, five hundred thirty-four".