49222656 has 198 divisors, whose sum is σ = 166850970. Its totient is φ = 13934592.

The previous prime is 49222651. The next prime is 49222661. The reversal of 49222656 is 65622294.

It is an interprime number because it is at equal distance from previous prime (49222651) and next prime (49222661).

It can be written as a sum of positive squares in only one way, i.e., 45158400 + 4064256 = 6720^2 + 2016^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 49222656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49222651) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 451530 + ... + 451638.

Almost surely, 2^49222656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49222656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83425485).

49222656 is an abundant number, since it is smaller than the sum of its proper divisors (117628314).

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

49222656 is a wasteful number, since it uses less digits than its factorization.

49222656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149 (or 121 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 49222656 is about 7015.8859739879. The cubic root of 49222656 is about 366.4839964300.

The spelling of 49222656 in words is "forty-nine million, two hundred twenty-two thousand, six hundred fifty-six".