51937997 has 12 divisors (see below), whose sum is σ = 53833920. Its totient is φ = 50093472.

The previous prime is 51937987. The next prime is 51937999. The reversal of 51937997 is 79973915.

It is a happy number.

It is not a de Polignac number, because 51937997 - 2⁴ = 51937981 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 (51937999) 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 11 ways as a sum of consecutive naturals, for example, 583529 + ... + 583617.

It is an arithmetic number, because the mean of its divisors is an integer number (4486160).

Almost surely, 2^51937997 is an apocalyptic number.

It is an amenable number.

51937997 is a deficient number, since it is larger than the sum of its proper divisors (1895923).

51937997 is an frugal number, since it uses more digits than its factorization.

51937997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340 (or 251 counting only the distinct ones).

The product of its digits is 535815, while the sum is 50.

The square root of 51937997 is about 7206.8021340953. The cubic root of 51937997 is about 373.1027061099.

The spelling of 51937997 in words is "fifty-one million, nine hundred thirty-seven thousand, nine hundred ninety-seven".