38520225 has 48 divisors (see below), whose sum is σ = 71424000. Its totient is φ = 20352960.

The previous prime is 38520199. The next prime is 38520227. The reversal of 38520225 is 52202583.

It is not a de Polignac number, because 38520225 - 2⁶ = 38520161 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38520227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 100384 + ... + 100766.

It is an arithmetic number, because the mean of its divisors is an integer number (1488000).

Almost surely, 2^38520225 is an apocalyptic number.

It is an amenable number.

38520225 is a deficient number, since it is larger than the sum of its proper divisors (32903775).

38520225 is a wasteful number, since it uses less digits than its factorization.

38520225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551 (or 540 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 38520225 is about 6206.4663859559. The cubic root of 38520225 is about 337.7247885202.

The spelling of 38520225 in words is "thirty-eight million, five hundred twenty thousand, two hundred twenty-five".