51021202 has 8 divisors (see below), whose sum is σ = 77500800. Its totient is φ = 25187604.

The previous prime is 51021197. The next prime is 51021241. The reversal of 51021202 is 20212015.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161302 + ... + 161617.

It is an arithmetic number, because the mean of its divisors is an integer number (9687600).

Almost surely, 2^51021202 is an apocalyptic number.

51021202 is a deficient number, since it is larger than the sum of its proper divisors (26479598).

51021202 is a wasteful number, since it uses less digits than its factorization.

51021202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323000.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 51021202 is about 7142.9127112124. The cubic root of 51021202 is about 370.8943594331.

Adding to 51021202 its reverse (20212015), we get a palindrome (71233217).

It can be divided in two parts, 510 and 21202, that added together give a palindrome (21712).

The spelling of 51021202 in words is "fifty-one million, twenty-one thousand, two hundred two".