201920425 has 36 divisors (see below), whose sum is σ = 293124096. Its totient is φ = 137575200.

The previous prime is 201920419. The next prime is 201920443. The reversal of 201920425 is 524029102.

It is not a de Polignac number, because 201920425 - 2¹⁷ = 201789353 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201920425.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 233544 + ... + 234406.

It is an arithmetic number, because the mean of its divisors is an integer number (8142336).

Almost surely, 2^201920425 is an apocalyptic number.

201920425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

201920425 is a deficient number, since it is larger than the sum of its proper divisors (91203671).

201920425 is a wasteful number, since it uses less digits than its factorization.

201920425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078 (or 1066 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 201920425 is about 14209.8706890668. The cubic root of 201920425 is about 586.6693739473.

Adding to 201920425 its reverse (524029102), we get a palindrome (725949527).

The spelling of 201920425 in words is "two hundred one million, nine hundred twenty thousand, four hundred twenty-five".