49851901 has 4 divisors (see below), whose sum is σ = 54383904. Its totient is φ = 45319900.

The previous prime is 49851881. The next prime is 49851931. The reversal of 49851901 is 10915894.

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 49851901 - 2¹¹ = 49849853 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 (49851931) 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, 2265985 + ... + 2266006.

It is an arithmetic number, because the mean of its divisors is an integer number (13595976).

Almost surely, 2^49851901 is an apocalyptic number.

It is an amenable number.

49851901 is a deficient number, since it is larger than the sum of its proper divisors (4532003).

49851901 is a wasteful number, since it uses less digits than its factorization.

49851901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4532002.

The product of its (nonzero) digits is 12960, while the sum is 37.

The square root of 49851901 is about 7060.5878650435. The cubic root of 49851901 is about 368.0390558934.

It can be divided in two parts, 4985 and 1901, that added together give a palindrome (6886).

The spelling of 49851901 in words is "forty-nine million, eight hundred fifty-one thousand, nine hundred one".