51941530 has 16 divisors (see below), whose sum is σ = 93735144. Its totient is φ = 20723200.

The previous prime is 51941507. The next prime is 51941531. The reversal of 51941530 is 3514915.

It can be written as a sum of positive squares in 4 ways, for example, as 45576001 + 6365529 = 6751^2 + 2523^2 .

It is not an unprimeable number, because it can be changed into a prime (51941531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2467 + ... + 10486.

Almost surely, 2^51941530 is an apocalyptic number.

51941530 is a deficient number, since it is larger than the sum of its proper divisors (41793614).

51941530 is a wasteful number, since it uses less digits than its factorization.

51941530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13361.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 51941530 is about 7207.0472455785. The cubic root of 51941530 is about 373.1111658250. Note that the first 4 decimals are identical.

It can be divided in two parts, 5194 and 1530, that added together give a square (6724 = 82²).

The spelling of 51941530 in words is "fifty-one million, nine hundred forty-one thousand, five hundred thirty".