51354630 has 48 divisors (see below), whose sum is σ = 139332960. Its totient is φ = 13098624.

The previous prime is 51354623. The next prime is 51354643. The reversal of 51354630 is 3645315.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51354594 and 51354603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10335 + ... + 14474.

It is an arithmetic number, because the mean of its divisors is an integer number (2902770).

Almost surely, 2^51354630 is an apocalyptic number.

51354630 is an abundant number, since it is smaller than the sum of its proper divisors (87978330).

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

51354630 is a wasteful number, since it uses less digits than its factorization.

51354630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24845 (or 24842 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 51354630 is about 7166.2144818586. The cubic root of 51354630 is about 371.7005481210.

Adding to 51354630 its reverse (3645315), we get a palindrome (54999945).

It can be divided in two parts, 51354 and 630, that added together give a square (51984 = 228²).

The spelling of 51354630 in words is "fifty-one million, three hundred fifty-four thousand, six hundred thirty".