51201416 has 32 divisors (see below), whose sum is σ = 116173440. Its totient is φ = 20652288.

The previous prime is 51201407. The next prime is 51201419. The reversal of 51201416 is 61410215.

It is not an unprimeable number, because it can be changed into a prime (51201419) 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, 25940 + ... + 27843.

It is an arithmetic number, because the mean of its divisors is an integer number (3630420).

Almost surely, 2^51201416 is an apocalyptic number.

51201416 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

51201416 is an abundant number, since it is smaller than the sum of its proper divisors (64972024).

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

51201416 is a wasteful number, since it uses less digits than its factorization.

51201416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53813 (or 53809 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 51201416 is about 7155.5164733232. The cubic root of 51201416 is about 371.3305298292.

The spelling of 51201416 in words is "fifty-one million, two hundred one thousand, four hundred sixteen".