51601410 has 72 divisors (see below), whose sum is σ = 156081276. Its totient is φ = 11793600.

The previous prime is 51601373. The next prime is 51601427. The reversal of 51601410 is 1410615.

51601410 is a `hidden beast` number, since 51 + 601 + 4 + 10 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 51279921 + 321489 = 7161^2 + 567^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1441 + ... + 10260.

Almost surely, 2^51601410 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51601410, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78040638).

51601410 is an abundant number, since it is smaller than the sum of its proper divisors (104479866).

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

51601410 is a wasteful number, since it uses less digits than its factorization.

51601410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11728 (or 11718 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 51601410 is about 7183.4121418724. The cubic root of 51601410 is about 372.2949880100.

The spelling of 51601410 in words is "fifty-one million, six hundred one thousand, four hundred ten".