51255254 has 4 divisors (see below), whose sum is σ = 76882884. Its totient is φ = 25627626.

The previous prime is 51255241. The next prime is 51255257. The reversal of 51255254 is 45255215.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51255257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12813812 + ... + 12813815.

It is an arithmetic number, because the mean of its divisors is an integer number (19220721).

Almost surely, 2^51255254 is an apocalyptic number.

51255254 is a deficient number, since it is larger than the sum of its proper divisors (25627630).

51255254 is a wasteful number, since it uses less digits than its factorization.

51255254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25627629.

The product of its digits is 10000, while the sum is 29.

The square root of 51255254 is about 7159.2774775113. The cubic root of 51255254 is about 371.4606348905.

The spelling of 51255254 in words is "fifty-one million, two hundred fifty-five thousand, two hundred fifty-four".