51461156 has 6 divisors (see below), whose sum is σ = 90057030. Its totient is φ = 25730576.

The previous prime is 51461129. The next prime is 51461171. The reversal of 51461156 is 65116415.

It can be written as a sum of positive squares in only one way, i.e., 34105600 + 17355556 = 5840^2 + 4166^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6432641 + ... + 6432648.

It is an arithmetic number, because the mean of its divisors is an integer number (15009505).

Almost surely, 2^51461156 is an apocalyptic number.

It is an amenable number.

51461156 is a deficient number, since it is larger than the sum of its proper divisors (38595874).

51461156 is a wasteful number, since it uses less digits than its factorization.

51461156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12865293 (or 12865291 counting only the distinct ones).

The product of its digits is 3600, while the sum is 29.

The square root of 51461156 is about 7173.6431469651. The cubic root of 51461156 is about 371.9573794004.

The spelling of 51461156 in words is "fifty-one million, four hundred sixty-one thousand, one hundred fifty-six".