51136030 has 64 divisors (see below), whose sum is σ = 108345600. Its totient is φ = 17176320.

The previous prime is 51136027. The next prime is 51136097. The reversal of 51136030 is 3063115.

51136030 = 3196² + 3197² + ... + 3200².

It is a super-2 number, since 2×51136030² = 5229787128321800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 51135989 and 51136007.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89586 + ... + 90154.

It is an arithmetic number, because the mean of its divisors is an integer number (1692900).

Almost surely, 2^51136030 is an apocalyptic number.

51136030 is an abundant number, since it is smaller than the sum of its proper divisors (57209570).

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

51136030 is a wasteful number, since it uses less digits than its factorization.

51136030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 51136030 is about 7150.9460912525. The cubic root of 51136030 is about 371.1723951352.

Adding to 51136030 its reverse (3063115), we get a palindrome (54199145).

The spelling of 51136030 in words is "fifty-one million, one hundred thirty-six thousand, thirty".