507201901 has 4 divisors (see below), whose sum is σ = 512223804. Its totient is φ = 502180000.

The previous prime is 507201889. The next prime is 507201923. The reversal of 507201901 is 109102705.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 109102705 = 5 ⋅21820541.

It can be written as a sum of positive squares in 2 ways, for example, as 482461225 + 24740676 = 21965^2 + 4974^2 .

It is a cyclic number.

It is not a de Polignac number, because 507201901 - 2²⁵ = 473647469 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 (507201971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2510800 + ... + 2511001.

It is an arithmetic number, because the mean of its divisors is an integer number (128055951).

Almost surely, 2^507201901 is an apocalyptic number.

It is an amenable number.

507201901 is a deficient number, since it is larger than the sum of its proper divisors (5021903).

507201901 is a wasteful number, since it uses less digits than its factorization.

507201901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5021902.

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 507201901 is about 22521.1434212386. The cubic root of 507201901 is about 797.4931428936.

The spelling of 507201901 in words is "five hundred seven million, two hundred one thousand, nine hundred one".