51602642 has 64 divisors (see below), whose sum is σ = 100101120. Its totient is φ = 19408896.

The previous prime is 51602611. The next prime is 51602647. The reversal of 51602642 is 24620615.

It is a super-2 number, since 2×51602642² = 5325665322760328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (51602647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 531938 + ... + 532034.

It is an arithmetic number, because the mean of its divisors is an integer number (1564080).

Almost surely, 2^51602642 is an apocalyptic number.

51602642 is a deficient number, since it is larger than the sum of its proper divisors (48498478).

51602642 is a wasteful number, since it uses less digits than its factorization.

51602642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 51602642 is about 7183.4978944801. The cubic root of 51602642 is about 372.2979508733.

The spelling of 51602642 in words is "fifty-one million, six hundred two thousand, six hundred forty-two".