51255463 has 8 divisors (see below), whose sum is σ = 58631328. Its totient is φ = 43893024.

The previous prime is 51255439. The next prime is 51255517. The reversal of 51255463 is 36455215.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-51255463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51252463) 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, 6945 + ... + 12277.

It is an arithmetic number, because the mean of its divisors is an integer number (7328916).

Almost surely, 2^51255463 is an apocalyptic number.

51255463 is a deficient number, since it is larger than the sum of its proper divisors (7375865).

51255463 is a wasteful number, since it uses less digits than its factorization.

51255463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6713.

The product of its digits is 18000, while the sum is 31.

The square root of 51255463 is about 7159.2920739414. The cubic root of 51255463 is about 371.4611397830.

The spelling of 51255463 in words is "fifty-one million, two hundred fifty-five thousand, four hundred sixty-three".