49315861 has 16 divisors (see below), whose sum is σ = 60407424. Its totient is φ = 39297024.

The previous prime is 49315853. The next prime is 49315873. The reversal of 49315861 is 16851394.

It is a cyclic number.

It is not a de Polignac number, because 49315861 - 2³ = 49315853 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49315861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49313861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7381 + ... + 12373.

It is an arithmetic number, because the mean of its divisors is an integer number (3775464).

Almost surely, 2^49315861 is an apocalyptic number.

It is an amenable number.

49315861 is a deficient number, since it is larger than the sum of its proper divisors (11091563).

49315861 is a wasteful number, since it uses less digits than its factorization.

49315861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5100.

The product of its digits is 25920, while the sum is 37.

The square root of 49315861 is about 7022.5252580535. The cubic root of 49315861 is about 366.7151677807.

It can be divided in two parts, 49315 and 861, that added together give a square (50176 = 224²).

The spelling of 49315861 in words is "forty-nine million, three hundred fifteen thousand, eight hundred sixty-one".