51254016 has 72 divisors (see below), whose sum is σ = 148835904. Its totient is φ = 15528960.

The previous prime is 51254009. The next prime is 51254023. The reversal of 51254016 is 61045215.

It is an interprime number because it is at equal distance from previous prime (51254009) and next prime (51254023).

It is a super-2 number, since 2×51254016² = 5253948312256512, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5415 + ... + 11481.

Almost surely, 2^51254016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51254016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74417952).

51254016 is an abundant number, since it is smaller than the sum of its proper divisors (97581888).

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

51254016 is a wasteful number, since it uses less digits than its factorization.

51254016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6097 (or 6083 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 51254016 is about 7159.1910157503. The cubic root of 51254016 is about 371.4576441600.

The spelling of 51254016 in words is "fifty-one million, two hundred fifty-four thousand, sixteen".