51736248 has 24 divisors (see below), whose sum is σ = 140119200. Its totient is φ = 17245392.

The previous prime is 51736247. The next prime is 51736271. The reversal of 51736248 is 84263715.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51736247) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 359208 + ... + 359351.

It is an arithmetic number, because the mean of its divisors is an integer number (5838300).

Almost surely, 2^51736248 is an apocalyptic number.

It is an amenable number.

51736248 is an abundant number, since it is smaller than the sum of its proper divisors (88382952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51736248 is a wasteful number, since it uses less digits than its factorization.

51736248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718571 (or 718564 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 51736248 is about 7192.7913913862. The cubic root of 51736248 is about 372.6189833559.

It can be divided in two parts, 51736 and 248, that added together give a square (51984 = 228²).

The spelling of 51736248 in words is "fifty-one million, seven hundred thirty-six thousand, two hundred forty-eight".