225121501 has 8 divisors (see below), whose sum is σ = 246477024. Its totient is φ = 203914320.

The previous prime is 225121499. The next prime is 225121549. The reversal of 225121501 is 105121522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225121501 - 2¹ = 225121499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225121301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33895 + ... + 39988.

It is an arithmetic number, because the mean of its divisors is an integer number (30809628).

Almost surely, 2^225121501 is an apocalyptic number.

It is an amenable number.

225121501 is a deficient number, since it is larger than the sum of its proper divisors (21355523).

225121501 is a wasteful number, since it uses less digits than its factorization.

225121501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74171.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 225121501 is about 15004.0494867219. The cubic root of 225121501 is about 608.3296603936.

The spelling of 225121501 in words is "two hundred twenty-five million, one hundred twenty-one thousand, five hundred one".