51550204 has 6 divisors (see below), whose sum is σ = 90212864. Its totient is φ = 25775100.

The previous prime is 51550201. The next prime is 51550207. The reversal of 51550204 is 40205515.

It is an interprime number because it is at equal distance from previous prime (51550201) and next prime (51550207).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51550201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6443772 + ... + 6443779.

Almost surely, 2^51550204 is an apocalyptic number.

It is an amenable number.

51550204 is a deficient number, since it is larger than the sum of its proper divisors (38662660).

51550204 is a wasteful number, since it uses less digits than its factorization.

51550204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12887555 (or 12887553 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 51550204 is about 7179.8470735803. The cubic root of 51550204 is about 372.1717998612.

Adding to 51550204 its reverse (40205515), we get a palindrome (91755719).

The spelling of 51550204 in words is "fifty-one million, five hundred fifty thousand, two hundred four".