19952901 has 6 divisors (see below), whose sum is σ = 28820870. Its totient is φ = 13301928.

The previous prime is 19952893. The next prime is 19952909. The reversal of 19952901 is 10925991.

It is an interprime number because it is at equal distance from previous prime (19952893) and next prime (19952909).

It can be written as a sum of positive squares in only one way, i.e., 16208676 + 3744225 = 4026^2 + 1935^2 .

It is not a de Polignac number, because 19952901 - 2³ = 19952893 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 (19952909) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1108486 + ... + 1108503.

Almost surely, 2^19952901 is an apocalyptic number.

It is an amenable number.

19952901 is a deficient number, since it is larger than the sum of its proper divisors (8867969).

19952901 is a wasteful number, since it uses less digits than its factorization.

19952901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2216995 (or 2216992 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 36.

The square root of 19952901 is about 4466.8670228696. The cubic root of 19952901 is about 271.2285169193.

The spelling of 19952901 in words is "nineteen million, nine hundred fifty-two thousand, nine hundred one".