50781225 has 24 divisors (see below), whose sum is σ = 91592352. Its totient is φ = 24620800.

The previous prime is 50781223. The next prime is 50781229. The reversal of 50781225 is 52218705.

It is not a de Polignac number, because 50781225 - 2¹ = 50781223 is a prime.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 50781192 and 50781201.

It is not an unprimeable number, because it can be changed into a prime (50781223) 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, 29952 + ... + 31601.

It is an arithmetic number, because the mean of its divisors is an integer number (3816348).

Almost surely, 2^50781225 is an apocalyptic number.

50781225 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

50781225 is a deficient number, since it is larger than the sum of its proper divisors (40811127).

50781225 is a wasteful number, since it uses less digits than its factorization.

50781225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61577 (or 61572 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 50781225 is about 7126.0946527534. The cubic root of 50781225 is about 370.3119477818.

The spelling of 50781225 in words is "fifty million, seven hundred eighty-one thousand, two hundred twenty-five".