51612037 has 4 divisors (see below), whose sum is σ = 54328480. Its totient is φ = 48895596.

The previous prime is 51612031. The next prime is 51612047. The reversal of 51612037 is 73021615.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51612037 - 2²³ = 43223429 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 (51612031) 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 3 ways as a sum of consecutive naturals, for example, 1358193 + ... + 1358230.

It is an arithmetic number, because the mean of its divisors is an integer number (13582120).

Almost surely, 2^51612037 is an apocalyptic number.

It is an amenable number.

51612037 is a deficient number, since it is larger than the sum of its proper divisors (2716443).

51612037 is a wasteful number, since it uses less digits than its factorization.

51612037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2716442.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 51612037 is about 7184.1517940534. The cubic root of 51612037 is about 372.3205435602.

The spelling of 51612037 in words is "fifty-one million, six hundred twelve thousand, thirty-seven".