49256820 has 72 divisors (see below), whose sum is σ = 158211144. Its totient is φ = 12361728.

The previous prime is 49256749. The next prime is 49256821. The reversal of 49256820 is 2865294.

It is a happy number.

49256820 is a `hidden beast` number, since 4 + 92 + 568 + 2 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 11655396 + 37601424 = 3414^2 + 6132^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49256821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4989 + ... + 11108.

It is an arithmetic number, because the mean of its divisors is an integer number (2197377).

Almost surely, 2^49256820 is an apocalyptic number.

It is an amenable number.

49256820 is an abundant number, since it is smaller than the sum of its proper divisors (108954324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49256820 is a wasteful number, since it uses less digits than its factorization.

49256820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16129 (or 16124 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 49256820 is about 7018.3203118695. The cubic root of 49256820 is about 366.5687654142.

The spelling of 49256820 in words is "forty-nine million, two hundred fifty-six thousand, eight hundred twenty".