51253477 has 16 divisors (see below), whose sum is σ = 57346560. Its totient is φ = 45414000.

The previous prime is 51253471. The next prime is 51253493. The reversal of 51253477 is 77435215.

It is a cyclic number.

It is not a de Polignac number, because 51253477 - 2¹⁵ = 51220709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51253471) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 97738 + ... + 98260.

It is an arithmetic number, because the mean of its divisors is an integer number (3584160).

Almost surely, 2^51253477 is an apocalyptic number.

It is an amenable number.

51253477 is a deficient number, since it is larger than the sum of its proper divisors (6093083).

51253477 is a wasteful number, since it uses less digits than its factorization.

51253477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744.

The product of its digits is 29400, while the sum is 34.

The square root of 51253477 is about 7159.1533717333. The cubic root of 51253477 is about 371.4563420417.

The spelling of 51253477 in words is "fifty-one million, two hundred fifty-three thousand, four hundred seventy-seven".