49851437 has 4 divisors (see below), whose sum is σ = 50244096. Its totient is φ = 49458780.

The previous prime is 49851433. The next prime is 49851499. The reversal of 49851437 is 73415894.

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 49851437 - 2² = 49851433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49851394 and 49851403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49851433) 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, 196139 + ... + 196392.

It is an arithmetic number, because the mean of its divisors is an integer number (12561024).

Almost surely, 2^49851437 is an apocalyptic number.

It is an amenable number.

49851437 is a deficient number, since it is larger than the sum of its proper divisors (392659).

49851437 is a wasteful number, since it uses less digits than its factorization.

49851437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392658.

The product of its digits is 120960, while the sum is 41.

The square root of 49851437 is about 7060.5550065133. Note that the first 3 decimals coincide. The cubic root of 49851437 is about 368.0379140403.

The spelling of 49851437 in words is "forty-nine million, eight hundred fifty-one thousand, four hundred thirty-seven".