51237460 has 12 divisors (see below), whose sum is σ = 107598708. Its totient is φ = 20494976.

The previous prime is 51237443. The next prime is 51237463. The reversal of 51237460 is 6473215.

It can be written as a sum of positive squares in 2 ways, for example, as 13439556 + 37797904 = 3666^2 + 6148^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51237463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1280917 + ... + 1280956.

It is an arithmetic number, because the mean of its divisors is an integer number (8966559).

Almost surely, 2^51237460 is an apocalyptic number.

It is an amenable number.

51237460 is an abundant number, since it is smaller than the sum of its proper divisors (56361248).

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

51237460 is a wasteful number, since it uses less digits than its factorization.

51237460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2561882 (or 2561880 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 51237460 is about 7158.0346464655. The cubic root of 51237460 is about 371.4176439445.

The spelling of 51237460 in words is "fifty-one million, two hundred thirty-seven thousand, four hundred sixty".